Removed trailing spaces in the most relevant files

Command used for the job:
egrep -rl ' $' --include *.c --include *.h --include  *.s --include  *.inc --include  *.txt *  | xargs sed -i 's/\s\+$//g'

Credits to Grant Murphy from Stack Overflow.

include/constants/vars.h

@@ -149,7 +149,7 @@
 #define VAR_LITTLEROOT_HOUSES_STATE_MAY      0x4082
 #define VAR_UNUSED_0x4083                    0x4083 // Unused Var
 #define VAR_BIRCH_LAB_STATE                  0x4084
-#define VAR_PETALBURG_GYM_STATE              0x4085 // 0-1: Wally tutorial, 2-6: 0-4 badges, 7: Defeated Norman, 8: Rematch Norman 
+#define VAR_PETALBURG_GYM_STATE              0x4085 // 0-1: Wally tutorial, 2-6: 0-4 badges, 7: Defeated Norman, 8: Rematch Norman
 #define VAR_CONTEST_HALL_STATE               0x4086
 #define VAR_CABLE_CLUB_STATE                 0x4087
 #define VAR_CONTEST_TYPE                     0x4088