Fix: remove blank minimap ids that are also used for transparent ones

[Miepee]

0xC1, 0xD2 and 0xD3 are all automatically filled in when a transparent tile goes into 0xA1, 0xB2 or 0xB3 respectively.
Not removing them from the blank tiles section means that we will either get the issue of:

• a door places its minimap tile in e.g. 0xC1
• a tube places its minimap tile in 0xA1 and also overwriting whatever was in 0xC1
• in-game the door will now suddenly look like a tube

or

• a tube places its minimap tile in 0xA1 and 0xC1
• a door places its minimap tile in 0xC1, overwriting the tube that was there
• in-game the tube will now suddenly look like a door when interacting with the nav room.

Also likely the reason why none of the second parts of the other transparent tiles are included in the blank section (e.g. 0xD8 - 0xDD)