C: improve templates

c/templates/ex.c

@@ -1,16 +0,0 @@
-/* See GNUmakefile below for explanation
- * https://github.com/braoult/exercism/blob/master/c/templates/GNUmakefile
- */
-#ifdef UNIT_TEST
-int main(int ac, char **av)
-{
-    int arg=1;
-    resistor_band_t i[2];
-
-    for (; arg<ac-1; ++arg, ++arg) {
-        *i=atoi(av[arg]);
-        *(i+1)=atoi(av[arg+1]);
-        printf("color(%d, %d)=%d\n", i[0], i[1], color_code(i));
-    }
-}
-#endif