Identify some more labels (a few link-related)

data/text/battle.asm

@@ -199,7 +199,7 @@ SentAllToMomText:
 	text "Sent all to MOM!"
 	prompt
 
-BattleText_0x80a4f:
+UnusedRivalLossText: ; unreferenced
 	text "<RIVAL>: Huh? I"
 	line "should've chosen"
 	cont "your #MON!"
@@ -215,7 +215,7 @@ BattleText_UseNextMon:
 	text "Use next #MON?"
 	done
 
-BattleText_0x80a93:
+UnusedRivalWinText: ; unreferenced
 	text "<RIVAL>: Yes!"
 	line "I guess I chose a"
 	cont "good #MON!"