Deleted a bunch of unused files.

Added environment to A2 exit, deleted environment from other A2 rooms.

Zennysoft.Game.Ma/src/map/dungeon/special collision models/column circle room 2_SD137.jpg.import

@@ -1,37 +0,0 @@
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-[deps]
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-source_file="res://src/map/dungeon/special collision models/column circle room 2_SD137.jpg"
-dest_files=["res://.godot/imported/column circle room 2_SD137.jpg-f31949369320b30ab7e5cc3c73c376d1.ctex"]
-
-[params]
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-compress/high_quality=false
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-compress/hdr_compression=1
-compress/normal_map=0
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-mipmaps/limit=-1
-roughness/mode=0
-roughness/src_normal=""
-process/fix_alpha_border=true
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-process/normal_map_invert_y=false
-process/hdr_as_srgb=false
-process/hdr_clamp_exposure=false
-process/size_limit=0
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