Remove cruft.

Test: builds
Change-Id: I432d97ca9c94d96eba74687338d27c0f41b71f0c
diff --git a/libc/Android.bp b/libc/Android.bp
index 486373c..c34cd85 100644
--- a/libc/Android.bp
+++ b/libc/Android.bp
@@ -81,12 +81,6 @@
     xom: false,
 }
 
-// ANDROIDMK TRANSLATION ERROR: unsupported directive
-// ifeq ($(strip $(DEBUG_BIONIC_LIBC)),true)
-//libc_common_cflags += ["-DDEBUG"]
-// ANDROIDMK TRANSLATION ERROR: unsupported directive
-// endif
-
 // ========================================================
 // libc_stack_protector.a - stack protector code
 // ========================================================