Remove third_party/mesa and references.

third_party/mesa/src is no longer checked out as of r582655.

BUG=873321

Change-Id: I6ee0dabd58b77a2c1995b7d42df4fb4df909884c
Reviewed-on: https://chromium-review.googlesource.com/1175403
Reviewed-by: Alexis Hétu <sugoi@chromium.org>
Reviewed-by: Scott Violet <sky@chromium.org>
Reviewed-by: Peter Collingbourne <pcc@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#583326}

build/linux/unbundle/README

@@ -32,7 +32,7 @@ Usage:
 
 1. remove_bundled_libraries.py <preserved-directories>
 
-   For example: remove_bundled_libraries.py third_party/mesa
+   For example: remove_bundled_libraries.py third_party/zlib
 
    The script scans sources looking for third_party directories.
    Everything that is not explicitly preserved is removed (except for

tools/cfi/blacklist.txt

@@ -9,9 +9,6 @@ fun:*Allocate*Backing*
 # WTF::ThreadSpecific
 fun:*ThreadSpecific*
 
-# Mesa contains several bad casts.
-src:*third_party/mesa*
-
 # LLVM's allocator
 src:*llvm/Support/Allocator.h
 

tools/checklicenses/checklicenses.py

@@ -452,12 +452,6 @@ def PrintUsage():
     'third_party/lzma_sdk': [
         'UNKNOWN',
     ],
-    'third_party/mesa/src': [
-        'GPL (v2)',
-        'GPL (v3 or later)',
-        'MIT/X11 (BSD like) GPL (v3 or later) with Bison parser exception',
-        'UNKNOWN',  # http://crbug.com/98450
-    ],
     'third_party/modp_b64': [
         'UNKNOWN',
     ],

tools/checkperms/checkperms.py

@@ -186,7 +186,6 @@
   'third_party/lcov/contrib/galaxy/gen_makefile.sh',
   'third_party/libxml/linux/xml2-config',
   'third_party/libxml/src/ltmain.sh',
-  'third_party/mesa/',
   'third_party/protobuf/',
   'third_party/sqlite/',
   'third_party/talloc/script/mksyms.sh',