Clean yacc version check
We don't rely on host preinstalled bison/yacc now.
Change-Id: Iac0a7f1c12fe9d33baa53e48297ecb41ad89792d
diff --git a/core/config.mk b/core/config.mk
index 1be3be0..e7ee49f 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -322,12 +322,7 @@
FINDBUGS := prebuilt/common/findbugs/bin/findbugs
EMMA_JAR := external/emma/lib/emma$(COMMON_JAVA_PACKAGE_SUFFIX)
-# Deal with archaic version of bison on Mac OS X.
-ifeq ($(filter 1.28,$(shell $(YACC) -V)),)
YACC_HEADER_SUFFIX:= .hpp
-else
-YACC_HEADER_SUFFIX:= .cpp.h
-endif
# Don't use column under Windows, cygwin or not
ifeq ($(HOST_OS),windows)