patch 8.2.1696: unused (duplicate) macros

Problem:    Unused (duplicate) macros.
Solution:   Remove the macros.

src/spell.c

@@ -66,10 +66,6 @@
 
 #define REGION_ALL 0xff		// word valid in all regions
 
-#define VIMSUGMAGIC "VIMsug"	// string at start of Vim .sug file
-#define VIMSUGMAGICL 6
-#define VIMSUGVERSION 1
-
 // Result values.  Lower number is accepted over higher one.
 #define SP_BANNED	-1
 #define SP_OK		0

src/version.c

@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1696,
 /**/
     1695,
 /**/