Revert "Enable continuous coverage: use '%c' specifier in LLVM_PROFILE_FILE"

Bug: http://b/194128476
Bug: http://b/210012154

This reverts commit e59f0f66fca09c641cc92baeebecdb1c8acf9bba.

Coverage metrics dropped for ~10 of the 40 modules.  There are also
regressions in mainline when running tests on older platform builds.

Test: presubmit
Change-Id: I50a011f68dcdc25883a68701c51e7e2aabc5a7dc
diff --git a/rootdir/Android.mk b/rootdir/Android.mk
index 2ed9eec..ce2ec0e 100644
--- a/rootdir/Android.mk
+++ b/rootdir/Android.mk
@@ -75,14 +75,9 @@
   EXPORT_GLOBAL_GCOV_OPTIONS := export GCOV_PREFIX /data/misc/trace
 endif
 
+EXPORT_GLOBAL_CLANG_COVERAGE_OPTIONS :=
 ifeq ($(CLANG_COVERAGE),true)
-  ifeq ($(BIONIC_COVERAGE),false)
-    # http://b/210012154 Disable continuous coverage if instrumentation is on
-    # for bionic/libc
-    EXPORT_GLOBAL_CLANG_COVERAGE_OPTIONS := export LLVM_PROFILE_FILE /data/misc/trace/clang%c-%20m.profraw
-  else
-    EXPORT_GLOBAL_CLANG_COVERAGE_OPTIONS := export LLVM_PROFILE_FILE /data/misc/trace/clang-%20m.profraw
-  endif
+  EXPORT_GLOBAL_CLANG_COVERAGE_OPTIONS := export LLVM_PROFILE_FILE /data/misc/trace/clang-%20m.profraw
 endif
 
 # Put it here instead of in init.rc module definition,