Remove usage of duplicate CGs

Update/onik_tips_02.txt

@@ -1,4 +1,4 @@
-void main()
+void main()
 {
 
 //■うちって制服自由？
@@ -208,7 +208,7 @@
 		   NULL, " There were a few wearing uniforms, but they were all the same design and rather plain.", Line_Normal);
 	ClearMessage();
 	DisableWindow();
-	DrawSceneWithMask( "bg_109", "left", 0, 0, 300 );
+	DrawSceneWithMask( "bg_108", "left", 0, 0, 300 );
 
 //「...他の連中が着てる制服は何なんだよ＠みんなお揃いだよな。＠
 	PlaySE(3, "s20/01/440100019", 128, 64);