Remove Mobile, Battle Tower, Mystery Gift, and Odd Egg (#1)

engine/link/link.asm

@@ -2033,8 +2033,6 @@ LinkTrade:
 
 .save
 	farcall SaveAfterLinkTrade
-	farcall StubbedTrainerRankings_Trades
-	farcall BackupMobileEventIndex
 	ld c, 40
 	call DelayFrames
 	hlcoord 0, 12

engine/link/mystery_gift_2.asm

@@ -1,150 +0,0 @@
-StageDataForMysteryGift:
-	ld de, wMysteryGiftStaging
-	ld a, GS_VERSION + 1
-	ld [de], a
-	inc de ; wMysteryGiftStaging+1
-	ld a, BANK(sGameData)
-	call OpenSRAM
-	ld hl, sPlayerData + wPlayerID - wPlayerData
-	ld a, [hli]
-	ld [de], a
-	ld b, a
-	inc de ; wMysteryGiftStaging+2
-	ld a, [hl]
-	ld [de], a
-	ld c, a
-	inc de ; wMysteryGiftStaging+3
-	push bc
-	ld hl, sPlayerData + wPlayerName - wPlayerData
-	ld bc, NAME_LENGTH
-	call CopyBytes
-	push de ; wMysteryGiftStaging+14
-	ld hl, sPokemonData + wPokedexCaught - wPokemonData
-	ld b, wEndPokedexCaught - wPokedexCaught
-	call CountSetBits
-	pop de
-	pop bc
-	ld a, [wNumSetBits]
-	ld [de], a
-	inc de ; wMysteryGiftStaging+15
-	call CloseSRAM
-	call Random
-	and 1
-	ld [de], a
-	inc de ; wMysteryGiftStaging+16
-	call .RandomSample
-	ld [de], a
-	inc de ; wMysteryGiftStaging+17
-	ld a, c
-	ld c, b
-	ld b, a
-	call .RandomSample
-	ld [de], a
-	inc de ; wMysteryGiftStaging+18
-	ld a, BANK(sBackupMysteryGiftItem)
-	call OpenSRAM
-	ld a, [sBackupMysteryGiftItem]
-	ld [de], a
-	inc de
-	ld a, [sNumDailyMysteryGiftPartnerIDs]
-	ld [de], a
-	ld a, wMysteryGiftPlayerDataEnd - wMysteryGiftPlayerData
-	ld [wUnusedMysteryGiftStagedDataLength], a
-	call CloseSRAM
-	ld hl, wMysteryGiftStaging
-	ld de, wMysteryGiftPlayerData
-	ld bc, wMysteryGiftPlayerDataEnd - wMysteryGiftPlayerData
-	jp CopyBytes
-
-.RandomSample:
-	push de
-	call Random
-	cp 10 percent
-	jr c, .tenpercent
-	call Random
-	and %111
-	ld d, a
-	rl d
-	ld e, $80
-.loop
-	rlc e
-	dec a
-	jr nz, .loop
-	ld a, e
-	and c
-	jr z, .skip
-	ld a, $1
-.skip
-	add d
-	jr .done
-
-.tenpercent
-	call Random
-	cp 20 percent - 1
-	jr c, .twopercent
-	call Random
-	and %011
-	ld d, a
-	rl d
-	ld e, $80
-.loop2
-	rlc e
-	dec a
-	jr nz, .loop2
-	ld a, e
-	and b
-	jr z, .skip2
-	ld a, $1
-.skip2
-	add d
-	add $10
-	jr .done
-
-.twopercent
-	call Random
-	cp 20 percent - 1
-	jr c, .pointfourpercent
-	ld a, b
-	swap a
-	and $7
-	add $18
-	jr .done
-
-.pointfourpercent
-	ld a, b
-	and $80
-	ld a, $20
-	jr z, .done
-	ld a, $21
-
-.done
-	pop de
-	ret
-
-MysteryGiftGetItem:
-	ld a, c
-	cp MysteryGiftItems.End - MysteryGiftItems
-	jr nc, MysteryGiftFallbackItem
-	ld hl, MysteryGiftItems
-	ld b, 0
-	add hl, bc
-	ld c, [hl]
-	ret
-
-MysteryGiftGetDecoration:
-	ld a, c
-	cp MysteryGiftDecos.End - MysteryGiftDecos
-	jr nc, MysteryGiftFallbackItem
-	ld hl, MysteryGiftDecos
-	ld b, 0
-	add hl, bc
-	ld c, [hl]
-	ret
-
-MysteryGiftFallbackItem:
-	ld c, DECO_POLKADOT_BED ; GREAT_BALL
-	ret
-
-INCLUDE "data/items/mystery_gift_items.asm"
-
-INCLUDE "data/decorations/mystery_gift_decos.asm"