Optimize some HRAM usage

ram/hram.asm

@@ -7,12 +7,14 @@ hSRAMBank:: db
 
 hVBlankCounter:: db
 
+hOverworldDelay:: db
+hTextDelayFrames:: db
+hVBlankOccurred:: db
+
 hROMBank:: db
 hVBlank:: db
 hMapEntryMethod:: db
 
-hMenuReturn:: db
-
 hJoypadReleased:: db
 hJoypadPressed::  db
 hJoypadDown::     db
@@ -127,6 +129,8 @@ hBGMapTileCount:: db
 hMapAnims::      db
 hTileAnimFrame:: db
 
+hScriptVar:: db
+
 hLastTalked:: db
 
 hRandomAdd:: db

ram/wram.asm

@@ -140,8 +140,6 @@ wLinkMode::
 ; a LINK_* value for the link type
 	db
 
-wScriptVar:: db
-
 wPlayerNextMovement:: db
 wPlayerMovement:: db
 
@@ -1195,17 +1193,13 @@ wCursorCurrentTile:: dw
 	ds 3
 wMoreMenuDataEnd::
 
-wOverworldDelay:: db
-wTextDelayFrames:: db
-wVBlankOccurred:: db
+wMenuReturn:: db
 
 wPredefID:: db
 wPredefHL:: dw
 wPredefAddress:: dw
 wFarCallBC:: dw
 
-wUnusedLinkCommunicationByte:: db
-
 wGameTimerPaused::
 ; bit 0: game timer paused
 ; bit 7: something mobile