Remove tools/clang (this will break things temporarily).

tools/clang/blink_gc_plugin/tests/finalize_after_dispatch.txt

Index: tools/clang/blink_gc_plugin/tests/finalize_after_dispatch.txt
diff --git a/tools/clang/blink_gc_plugin/tests/finalize_after_dispatch.txt b/tools/clang/blink_gc_plugin/tests/finalize_after_dispatch.txt
deleted file mode 100644
index 8a652a4b5fd6bebef4aca86189e846dd29badbb3..0000000000000000000000000000000000000000
--- a/tools/clang/blink_gc_plugin/tests/finalize_after_dispatch.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-In file included from finalize_after_dispatch.cpp:5:
-./finalize_after_dispatch.h:12:1: warning: [blink-gc] Class 'NeedsFinalize' is missing manual finalize dispatch.
-class NeedsFinalize : public GarbageCollectedFinalized<NeedsFinalize> {
-^
-./finalize_after_dispatch.h:19:1: warning: [blink-gc] Class 'NeedsDispatch' is missing manual trace dispatch.
-class NeedsDispatch : public GarbageCollectedFinalized<NeedsDispatch> {
-^
-./finalize_after_dispatch.h:26:1: warning: [blink-gc] Class 'NeedsFinalizedBase' requires finalization.
-class NeedsFinalizedBase : public GarbageCollected<NeedsFinalizedBase> {
-^
-./finalize_after_dispatch.h:30:5: note: [blink-gc] User-declared finalizer declared here:
-    void finalizeGarbageCollectedObject() { };
-    ^
-finalize_after_dispatch.cpp:30:1: warning: [blink-gc] Missing dispatch to class 'D' in manual finalize dispatch.
-void A::finalizeGarbageCollectedObject()
-^
-4 warnings generated.