docs: remove outdated notes on splits from roadmap

[jkillian]

What this PR does / why we need it:
Removes some outdated notes from the roadmap about VSCode window limitations that were no longer new.

[TravisBuddy]

Travis tests have failed

Hey @jkillian,
Please read the following log in order to understand the failure reason.
It'll be awesome if you fix what's wrong and commit the changes.

Node.js: 8

View build log

if [[ $(git diff-index HEAD -- *.js *.ts *.md) ]]; then git diff; echo "Prettier Failed. Run `gulp forceprettier` and commit changes to resolve."; exit 1; fi

diff --git a/ROADMAP.md b/ROADMAP.md
index d2152cd..ae982fa 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -439,8 +439,8 @@ Miscellanea:
 | :white_check_mark:        | :1234: @@                         | repeat previous @{a-z} (N times)                                                                   |
 | :arrow_down:              | :@{a-z}                           | execute the contents of register {a-z} as an Ex command                                            |
 | :arrow_down:              | :@@                               | repeat previous :@{a-z}                                                                            |
-| :arrow_down:              | :[range]g[lobal]/{pattern}/[cmd]  | execute Ex command [cmd](default: ":p") on the lines within [range] where {pattern} matches        |
-| :arrow_down:              | :[range]g[lobal]!/{pattern}/[cmd] | execute Ex command [cmd](default: ":p") on the lines within [range] where {pattern} does NOT match |
+| :arrow_down:              | :[range]g[lobal]/{pattern}/[cmd]  | execute Ex command [cmd](default: ':p') on the lines within [range] where {pattern} matches        |
+| :arrow_down:              | :[range]g[lobal]!/{pattern}/[cmd] | execute Ex command [cmd](default: ':p') on the lines within [range] where {pattern} does NOT match |
 | :arrow_down:              | :so[urce] {file}                  | read Ex commands from {file}                                                                       |
 | :arrow_down:              | :so[urce]! {file}                 | read Vim commands from {file}                                                                      |
 | :arrow_down:              | :sl[eep][sec]                     | don't do anything for [sec] seconds                                                                |
diff --git a/test/configuration/validators/neovimValidator.test.ts b/test/configuration/validators/neovimValidator.test.ts
index c898e10..7785632 100644
--- a/test/configuration/validators/neovimValidator.test.ts
+++ b/test/configuration/validators/neovimValidator.test.ts
@@ -33,4 +33,4 @@ suite('Neovim Validator', () => {
     // assert
     assert.equal(actual.numErrors, 0);
   });
-});
\ No newline at end of file
+});
diff --git a/test/state/vimState.test.ts b/test/state/vimState.test.ts
index 51c32a2..193640d 100644
--- a/test/state/vimState.test.ts
+++ b/test/state/vimState.test.ts
@@ -17,10 +17,7 @@ suite('VimState', () => {
     const vimState = new VimState(vscode.window.activeTextEditor!);
     const cursorStart = new Position(0, 0);
     const cursorStop = new Position(0, 1);
-    const initialCursors = [
-      new Range(cursorStart, cursorStop),
-      new Range(cursorStart, cursorStop)
-    ];
+    const initialCursors = [new Range(cursorStart, cursorStop), new Range(cursorStart, cursorStop)];
 
     // test
     vimState.cursors = initialCursors;
@@ -36,7 +33,7 @@ suite('VimState', () => {
     const cursorStop = new Position(0, 1);
     const initialCursors = [
       new Range(cursorStart, cursorStop),
-      new Range(new Position(1, 0), new Position(1, 1))
+      new Range(new Position(1, 0), new Position(1, 1)),
     ];
 
     // test
Prettier Failed. Run [05:37:12] Using gulpfile ~/build/VSCodeVim/Vim/gulpfile.js
[05:37:12] Starting 'forceprettier'...
[05:37:25] Finished 'forceprettier' after 14 s and commit changes to resolve.

TravisBuddy Request Identifier: 41a358f0-4164-11e9-b4f6-c1bea236eaae

[TravisBuddy]

Travis tests have failed

Hey @jkillian,
Please read the following log in order to understand the failure reason.
It'll be awesome if you fix what's wrong and commit the changes.

Node.js: 8

View build log

if [[ $(git diff-index HEAD -- *.js *.ts *.md) ]]; then git diff; echo "Prettier Failed. Run `gulp forceprettier` and commit changes to resolve."; exit 1; fi

diff --git a/ROADMAP.md b/ROADMAP.md
index d2152cd..ae982fa 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -439,8 +439,8 @@ Miscellanea:
 | :white_check_mark:        | :1234: @@                         | repeat previous @{a-z} (N times)                                                                   |
 | :arrow_down:              | :@{a-z}                           | execute the contents of register {a-z} as an Ex command                                            |
 | :arrow_down:              | :@@                               | repeat previous :@{a-z}                                                                            |
-| :arrow_down:              | :[range]g[lobal]/{pattern}/[cmd]  | execute Ex command [cmd](default: ":p") on the lines within [range] where {pattern} matches        |
-| :arrow_down:              | :[range]g[lobal]!/{pattern}/[cmd] | execute Ex command [cmd](default: ":p") on the lines within [range] where {pattern} does NOT match |
+| :arrow_down:              | :[range]g[lobal]/{pattern}/[cmd]  | execute Ex command [cmd](default: ':p') on the lines within [range] where {pattern} matches        |
+| :arrow_down:              | :[range]g[lobal]!/{pattern}/[cmd] | execute Ex command [cmd](default: ':p') on the lines within [range] where {pattern} does NOT match |
 | :arrow_down:              | :so[urce] {file}                  | read Ex commands from {file}                                                                       |
 | :arrow_down:              | :so[urce]! {file}                 | read Vim commands from {file}                                                                      |
 | :arrow_down:              | :sl[eep][sec]                     | don't do anything for [sec] seconds                                                                |
diff --git a/test/configuration/validators/neovimValidator.test.ts b/test/configuration/validators/neovimValidator.test.ts
index c898e10..7785632 100644
--- a/test/configuration/validators/neovimValidator.test.ts
+++ b/test/configuration/validators/neovimValidator.test.ts
@@ -33,4 +33,4 @@ suite('Neovim Validator', () => {
     // assert
     assert.equal(actual.numErrors, 0);
   });
-});
\ No newline at end of file
+});
diff --git a/test/state/vimState.test.ts b/test/state/vimState.test.ts
index 51c32a2..193640d 100644
--- a/test/state/vimState.test.ts
+++ b/test/state/vimState.test.ts
@@ -17,10 +17,7 @@ suite('VimState', () => {
     const vimState = new VimState(vscode.window.activeTextEditor!);
     const cursorStart = new Position(0, 0);
     const cursorStop = new Position(0, 1);
-    const initialCursors = [
-      new Range(cursorStart, cursorStop),
-      new Range(cursorStart, cursorStop)
-    ];
+    const initialCursors = [new Range(cursorStart, cursorStop), new Range(cursorStart, cursorStop)];
 
     // test
     vimState.cursors = initialCursors;
@@ -36,7 +33,7 @@ suite('VimState', () => {
     const cursorStop = new Position(0, 1);
     const initialCursors = [
       new Range(cursorStart, cursorStop),
-      new Range(new Position(1, 0), new Position(1, 1))
+      new Range(new Position(1, 0), new Position(1, 1)),
     ];
 
     // test
Prettier Failed. Run [05:37:37] Using gulpfile ~/build/VSCodeVim/Vim/gulpfile.js
[05:37:37] Starting 'forceprettier'...
[05:37:51] Finished 'forceprettier' after 14 s and commit changes to resolve.

TravisBuddy Request Identifier: 50ef5cf0-4164-11e9-b4f6-c1bea236eaae

[jkillian]

gulp forceprettier seems to have made a few unrelated changes, I left them in since it seemed harmless

[jpoon]

Thanks @jkillian

[TravisBuddy]

Hey @jkillian,
Something went wrong with the build.

TravisCI finished with status errored, which means the build failed because of something unrelated to the tests, such as a problem with a dependency or the build process itself.

View build log

TravisBuddy Request Identifier: 7870d570-41fe-11e9-b594-dbf9d598ca9b