remove some more serialized junk from the sysimg (#58078)
Together, the commits save roughly 184 MB -> 159 MB by not storing
unnecessary inferred IR
```
$ llvm-size -A usr/lib/julia/sys.dylib
usr/lib/julia/sys.dylib :
section size addr
__text 15522036 1904
__stubs 1128 15523940
__stub_helper 1152 15525068
__const 438592 15526224
__cstring 297006 15964816
__unwind_info 247368 16261824
__eh_frame 27144 16509192
__got 104 16547840
__const 632 16547944
__la_symbol_ptr 752 16564224
__data 142444216 16564992
__common 100800 159009216
Total 159080930
```
