diff --git a/SOURCES/grub.macros b/SOURCES/grub.macros
index 168b89b..c9e5177 100644
--- a/SOURCES/grub.macros
+++ b/SOURCES/grub.macros
@@ -12,16 +12,7 @@
 %global cc_equals %{nil}
 %endif
 
-%global efi_cflags %(echo %{optflags} | 			\\\
-	sed							\\\
-		-e 's/-O./-g3/g'				\\\
-		-e 's/-fstack-protector[[:alpha:]-]\\+//g'	\\\
-		-e 's/-Wp,-D_FORTIFY_SOURCE=[[:digit:]]\\+//g'	\\\
-		-e 's/--param=ssp-buffer-size=4//g'		\\\
-		-e 's/-mregparm=3/-mregparm=4/g'		\\\
-		-e 's/-fexceptions//g'				\\\
-		-e 's/-fasynchronous-unwind-tables//g'		\\\
-		-e 's/^/ -fno-strict-aliasing /' ) %{nil}
+%global efi_cflags ''
 %global legacy_cflags %(echo %{efi_cflags} |			\\\
 	sed							\\\
 		-e 's/-m64//g'					\\\