Remove color-setting code

It's never used

src/nmseffect.c

@@ -33,7 +33,7 @@
 
 // Behavior settings
 int maskBlank        = 0;            // Mask blank spaces
-static int colorOn          = 1;            // Terminal color flag
+const int colorOn          = 1;            // Terminal color flag - nothing actually sets this to be false ever
 
 // Character attribute structure, linked list. Keeps track of every
 // character's attributes required for rendering and decryption effect.
@@ -299,20 +299,6 @@ void nmseffect_set_clearscr(int setting) {
 	nmstermio_set_clearscr(setting);
 }
 
-/*
- * Set the 'colorOn' flag according to the true/false value of the 'setting'
- * argument. This flag tells nmseffect_exec() to use colors in it's output.
- * This is true by default, and meant to be used only for terminals that
- * do not support color. Though, compiling with ncurses support is perhaps
- * a better option, as it will detect color capabilities automatically.
- */
-void nmseffect_set_color(int setting) {
-	if (setting)
-		colorOn = 1;
-	else
-		colorOn = 0;
-}
-
 /*
  * Sleep for the number of milliseconds indicated by argument 't'.
  */