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

tools/clang/plugins/tests/virtual_base_method_also_final.txt

Index: tools/clang/plugins/tests/virtual_base_method_also_final.txt
diff --git a/tools/clang/plugins/tests/virtual_base_method_also_final.txt b/tools/clang/plugins/tests/virtual_base_method_also_final.txt
deleted file mode 100644
index 80208dcd4907a009439388e8267a3bd1a8bf9dbe..0000000000000000000000000000000000000000
--- a/tools/clang/plugins/tests/virtual_base_method_also_final.txt
+++ /dev/null
@@ -1,29 +0,0 @@
-virtual_base_method_also_final.cpp:10:3: warning: [chromium-style] 'virtual' is redundant; 'final' implies 'virtual'.
-  VIRTUAL void F() final {}
-  ^~~~~~~~
-virtual_base_method_also_final.cpp:5:17: note: expanded from macro 'VIRTUAL'
-#define VIRTUAL virtual
-                ^
-virtual_base_method_also_final.cpp:10:3: warning: [chromium-style] The virtual method does not override anything and is final; consider making it non-virtual.
-  VIRTUAL void F() final {}
-  ^~~~~~~~         ~~~~~~
-virtual_base_method_also_final.cpp:5:17: note: expanded from macro 'VIRTUAL'
-#define VIRTUAL virtual
-                ^
-virtual_base_method_also_final.cpp:13:3: warning: [chromium-style] 'virtual' is redundant; 'final' implies 'virtual'.
-  void VIRTUAL G() final {}
-  ^
-virtual_base_method_also_final.cpp:13:3: warning: [chromium-style] The virtual method does not override anything and is final; consider making it non-virtual.
-  void VIRTUAL G() final {}
-  ^                ~~~~~~
-virtual_base_method_also_final.cpp:16:3: warning: [chromium-style] 'virtual' is redundant; 'final' implies 'virtual'.
-  VIRTUAL_VOID H() final {}
-  ^
-virtual_base_method_also_final.cpp:6:22: note: expanded from macro 'VIRTUAL_VOID'
-#define VIRTUAL_VOID virtual void
-                     ^
-virtual_base_method_also_final.cpp:16:3: warning: [chromium-style] The virtual method does not override anything and is final; consider making it non-virtual.
-virtual_base_method_also_final.cpp:6:22: note: expanded from macro 'VIRTUAL_VOID'
-#define VIRTUAL_VOID virtual void
-                     ^
-6 warnings generated.