[textmate-grammars] remove extension

Removes the `@theia/textmate-grammars` extension since it is
contributed by a builtin extension, and will no longer be
maintained by the project. The extension remains in the Git
history for anyone who would like to reference it or maintain
it.

Signed-off-by: Vincent Fugnitto <vincent.fugnitto@ericsson.com>

.travis.yml

@@ -51,7 +51,6 @@ cache:
     - packages/search-in-workspace/node_modules
     - packages/task/node_modules
     - packages/terminal/node_modules
-    - packages/textmate-grammars/node_modules
     - packages/tslint/node_modules
     - packages/typehierarchy/node_modules
     - packages/typescript/node_modules

CHANGELOG.md

@@ -60,6 +60,8 @@ Breaking changes:
   - The extension will no longer be maintained by the project and remains in the Git history for anyone who would like to reference it or maintain it.
   - Please view the `theia-apps` [theia-python](https://github.com/theia-ide/theia-apps/tree/master/theia-python-docker) image for an example application which has been updated to
   use VS Code extensions instead of `@theia/python`.
+- [textmate-grammars] removed the `@theia/textmate-grammars` extension [#6933](https://github.com/eclipse-theia/theia/pull/6933)
+  - The extension will no longer be maintained by the project and remains in the Git history for anyone who would like to reference it or maintain it.
 
 ## v0.15.0
 

configs/root-compilation.tsconfig.json

@@ -115,9 +115,6 @@
     {
       "path": "../packages/terminal/compile.tsconfig.json"
     },
-    {
-      "path": "../packages/textmate-grammars/compile.tsconfig.json"
-    },
     {
       "path": "../packages/tslint/compile.tsconfig.json"
     },

examples/electron/compile.tsconfig.json

@@ -107,6 +107,9 @@
     {
       "path": "../../packages/terminal/compile.tsconfig.json"
     },
+    {
+      "path": "../../packages/tslint/compile.tsconfig.json"
+    },
     {
       "path": "../../packages/typehierarchy/compile.tsconfig.json"
     },