Remove files that moved to buildroot

.gitignore

@@ -17,58 +17,4 @@ cscope.*
 Session.vim
 tags
 Thumbs.db
-/build/util/LASTCHANGE*
 .idea
-
-# directories pulled in via deps or hooks
-/base/
-/build/linux/bin/eu-strip
-/buildtools/
-/dart/
-/lib/
-/mojo/devtools/
-/mojo/public/
-/native_client/
-/out/
-/out_*/
-/sdch/open-vcdiff/
-/testing/gmock/
-/testing/gtest/
-/third_party/android_tools/
-/third_party/angle/
-/third_party/appurify-python/
-/third_party/boringssl/src/
-/third_party/colorama/src/
-/third_party/dart-sdk/
-/third_party/dejavu-fonts-ttf-2.34/ttf/*.ttf
-/third_party/freetype-android/src
-/third_party/go/tool/
-/third_party/gtest/
-/third_party/icu/
-/third_party/jsr-305/src/
-/third_party/libc++/trunk/
-/third_party/libc++abi/trunk/
-/third_party/libjpeg_turbo/
-/third_party/llvm/
-/third_party/llvm-build/
-/third_party/junit/src/
-/third_party/mockito/src/
-/third_party/pdfium/
-/third_party/pywebsocket/src/
-/third_party/requests/src/
-/third_party/robolectric/lib/
-/third_party/skia/
-/third_party/yasm/binaries/
-/third_party/yasm/source/patched-yasm/
-/tools/grit/
-
-# dart packages directories and related.
-/examples/**/packages
-/examples/**/pubspec.lock
-/mojo/common/dart/packages
-/sky/packages/**/packages
-/sky/packages/sky_services/lib/
-/sky/tools/pubspec_maintenance/packages/
-/sky/tools/pubspec_maintenance/pubspec.lock
-/mojo/dart/packages/**/packages/
-/mojo/dart/packages/**/pubspec.lock