[NewPM][CodeGen] Remove reference to `MachineModuleInfo` when processing `MachineFunction`

[paperchalice]

In order to support "machine module pass" in legacy pass manager, MachineFunction and MachineModuleInfo are tightly coupled (733fe36), but now we have new pass manager, we can use MachineFunction as analysis result again, thus the MachineModuleInfo during parsing MachineFunction is redundant, we should decouple them as much as possible.

Currently, these facilities (If there is anything missing, please add it directly) use MachineModuleInfo :

• MIRParser
• MachineModuleSlotTracker
• MachineOutliner

CC @aeubanks @arsenm.

[arsenm]

https://reviews.llvm.org/D123933 is another thing we should remove from MachineModuleInfo