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.

src/frontier_util.c

@@ -2397,7 +2397,7 @@ void ClearRankingHallRecords(void)
         {
             for (k = 0; k < 3; k++)
             {
-                CopyTrainerId(gSaveBlock2Ptr->hallRecords1P[i][j][k].id, ZERO); 
+                CopyTrainerId(gSaveBlock2Ptr->hallRecords1P[i][j][k].id, ZERO);
                 gSaveBlock2Ptr->hallRecords1P[i][j][k].name[0] = EOS;
                 gSaveBlock2Ptr->hallRecords1P[i][j][k].winStreak = 0;
             }