src/Makefile: Remove -fomit-frame-pointer from default build

-fomit-frame-pointer is already turned on by -O1 optimization flag.

The liburing default compilation uses -O2 optimization, -O2 turns on
all optimization flags specified by -O1. Therefore, we don't need to
specify -fomit-frame-pointer here. Remove it.

Link: https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html
Signed-off-by: Alviro Iskandar Setiawan <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>

src/Makefile

@@ -8,7 +8,7 @@ libdevdir ?= $(prefix)/lib
 CPPFLAGS ?=
 override CPPFLAGS += -D_GNU_SOURCE \
 	-Iinclude/ -include ../config-host.h
-CFLAGS ?= -g -fomit-frame-pointer -O2 -Wall -Wextra -fno-stack-protector
+CFLAGS ?= -g -O2 -Wall -Wextra -fno-stack-protector
 override CFLAGS += -Wno-unused-parameter -Wno-sign-compare -DLIBURING_INTERNAL
 SO_CFLAGS=-fPIC $(CFLAGS)
 L_CFLAGS=$(CFLAGS)