Revert "Makefile: suppress pedantic warnings in user CFLAGS"

This reverts commit 6ae959e.

It appears as if -pedantic is special in that there is no option
to disable it.

Author: rofl0r

Makefile

@@ -45,7 +45,7 @@ ALL_CONFIGS = src/proxychains.conf
 
 -include config.mak
 
-CFLAGS+=$(USER_CFLAGS) $(MAC_CFLAGS) -Wno-pedantic
+CFLAGS+=$(USER_CFLAGS) $(MAC_CFLAGS)
 CFLAGS_MAIN=-DLIB_DIR=\"$(libdir)\" -DSYSCONFDIR=\"$(sysconfdir)\" -DDLL_NAME=\"$(LDSO_PATHNAME)\"