Remove Chromium's custom closure runner.

third_party/closure_compiler/runner/how_to_test_compiler_pass.md

Index: third_party/closure_compiler/runner/how_to_test_compiler_pass.md
diff --git a/third_party/closure_compiler/runner/how_to_test_compiler_pass.md b/third_party/closure_compiler/runner/how_to_test_compiler_pass.md
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-Run Java tests
-==============
-
-1. Build Closure Compiler jar with all tests:
-
-        git clone https://github.com/google/closure-compiler.git
-        cd closure-compiler
-        ant all-classes-jar
-
-2. Add test file to Eclipse and run tests in it.
-  - Launch Eclipse.
-  - File -> New -> Java Project.
-  - Enter any project name, click "Next >".
-  - On the tab "Source" click on the icon "Link additional source to project".
-  - Select "third_party/closure_compiler/runner/test", click "Finish".
-  - Click on the icon  "Link additional source to project" once again.
-  - Select "third_party/closure_compiler/runner/src", type a name "src2",
-      click "Finish".
-  - On the tab "Libraries" click "Add External JARs...".
-  - Select "closure-compiler/build/compiler.jar", click "Finish" two times.
-  - Open the class test/com.google.javascript.jscomp/ChromePassTest.java.
-  - Run As -> JUnit Test.
-
-
-Run Python tests
-================
-
-Run in Shell:
-
-    ./third_party/closure_compiler/runner/build_runner_jar.py
-    ./third_party/closure_compiler/compiler_customization_test.py