Remove -Wstrict-overflow

Author: joinemm

Makefile

@@ -3,7 +3,7 @@ CFLAGS = -pedantic -Wall -Wextra -Wcast-align -Wcast-qual -Wctor-dtor-privacy \
 		 -Wmissing-include-dirs -Wnoexcept \
 		 -Woverloaded-virtual -Wredundant-decls -Wshadow \
 		 -Wsign-conversion -Wsign-promo -Wstrict-null-sentinel \
-		 -Wstrict-overflow=5 -Wswitch-default -Wundef -Werror -Wno-unused 
+		 -Wswitch-default -Wundef -Werror -Wno-unused 
 
 # these are annoying
 # -Wmissing-declarations -Wold-style-cast