Revert "Implement GL_KHR_debug."

This reverts commit 6c521b7a70a53b1c9f7762e53e34b5a8146b0f7b.

Change-Id: I6ff981198e31f34d3e405edea6277ee75516d6ee
Reviewed-on: https://chromium-review.googlesource.com/319820
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>
diff --git a/src/libANGLE/Query.cpp b/src/libANGLE/Query.cpp
index 09bf53d..e88ea2b 100644
--- a/src/libANGLE/Query.cpp
+++ b/src/libANGLE/Query.cpp
@@ -11,7 +11,9 @@
 
 namespace gl
 {
-Query::Query(rx::QueryImpl *impl, GLuint id) : RefCountObject(id), mQuery(impl), mLabel()
+Query::Query(rx::QueryImpl *impl, GLuint id)
+    : RefCountObject(id),
+      mQuery(impl)
 {
 }
 
@@ -20,16 +22,6 @@
     SafeDelete(mQuery);
 }
 
-void Query::setLabel(const std::string &label)
-{
-    mLabel = label;
-}
-
-const std::string &Query::getLabel() const
-{
-    return mLabel;
-}
-
 Error Query::begin()
 {
     return mQuery->begin();