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/trainer_card.c

@@ -281,31 +281,31 @@ static const u8 sTrainerPicOffset[2][GENDER_COUNT][2] =
 {
     // Kanto
     {
-        [MALE]   = {13, 4}, 
+        [MALE]   = {13, 4},
         [FEMALE] = {13, 4}
     },
     // Hoenn
     {
-        [MALE]   = {1, 0}, 
+        [MALE]   = {1, 0},
         [FEMALE] = {1, 0}
     },
 };
 
-static const u8 sTrainerPicFacilityClass[][GENDER_COUNT] = 
+static const u8 sTrainerPicFacilityClass[][GENDER_COUNT] =
 {
-    [CARD_TYPE_FRLG] = 
+    [CARD_TYPE_FRLG] =
     {
-        [MALE]   = FACILITY_CLASS_RED, 
+        [MALE]   = FACILITY_CLASS_RED,
         [FEMALE] = FACILITY_CLASS_LEAF
-    }, 
-    [CARD_TYPE_RS] = 
+    },
+    [CARD_TYPE_RS] =
     {
-        [MALE]   = FACILITY_CLASS_RS_BRENDAN, 
+        [MALE]   = FACILITY_CLASS_RS_BRENDAN,
         [FEMALE] = FACILITY_CLASS_RS_MAY
-    }, 
-    [CARD_TYPE_EMERALD] = 
+    },
+    [CARD_TYPE_EMERALD] =
     {
-        [MALE]   = FACILITY_CLASS_BRENDAN, 
+        [MALE]   = FACILITY_CLASS_BRENDAN,
         [FEMALE] = FACILITY_CLASS_MAY
     }
 };
@@ -1201,10 +1201,10 @@ static void PrintHofDebutTimeOnCard(void)
         PrintStatOnBackOfCard(0, gText_HallOfFameDebut, sData->textHofTime, sTrainerCardStatColors);
 }
 
-static const u8 *const sLinkBattleTexts[] = 
+static const u8 *const sLinkBattleTexts[] =
 {
-    [CARD_TYPE_FRLG]    = gText_LinkBattles, 
-    [CARD_TYPE_RS]      = gText_LinkCableBattles, 
+    [CARD_TYPE_FRLG]    = gText_LinkBattles,
+    [CARD_TYPE_RS]      = gText_LinkCableBattles,
     [CARD_TYPE_EMERALD] = gText_LinkBattles
 };