Instead of removing ARRAY_SIZE just #ifndef around it so patches can be

generated against the gcc-2.95.3 tag and this will compile. (as ARRAY_SIZE
isn't provided in libiberty included in gcc-2.95.3 itself

gnu/dist/toolchain/gcc/f/proj.h

@@ -66,6 +66,10 @@ typedef enum
     Doggone_Trailing_Comma_Dont_Work = 1
   } bool;
 
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(a) (sizeof(a)/sizeof(a[0]))
+#endif
+
 #ifndef UNUSED	/* Compile with -DUNUSED= if cc doesn't support this. */
 #if BUILT_WITH_270
 #define UNUSED __attribute__ ((unused))