Use standard optimisations.

Index: h2patch/Makefile
--- h2patch/Makefile.orig
+++ h2patch/Makefile
@@ -19,13 +19,6 @@ LINKER = $(CC)
 
 CPUFLAGS=
 CFLAGS  = -Wall
-CFLAGS += $(CPUFLAGS)
-ifndef DEBUG
-CFLAGS += -O2 -DNDEBUG=1
-else
-CFLAGS += -g
-endif
-LDFLAGS =
 
 XDELTA_DIR:= $(LIBS_DIR)/xdelta3
 XDFLAGS:= -DXD3_DEBUG=0
