big cleanup, word on metadata

Fonderie/interpolator.c

@@ -122,7 +122,7 @@ int		foo, idx, ipng, w, h, step;
 int		curpix;
 int		iarray[3];
 char		*cptr, line[200];
-float		coef, value;
+float		coef;
 double		meanmetric;
 IdxValue	*idx_values;			/* gni? */
 
@@ -175,7 +175,6 @@ for (idx=0; idx<globbuf.gl_pathc; idx++) {
 		fprintf(stderr, "load %s from dump -> %d\n", cptr, foo);
 		continue;
 		}
-	value = idx_values[idx].value;		/* WTF ? */
 
 	/* here was the input filter */
 	foo = filterstack_run(0, &B, 0);