[PartiallyInlineLibCalls] Disable sqrt expansion for strictfp.

This pass emits a floating point compare and a conditional branch,
but if strictfp is enabled we don't emit a constrained compare
intrinsic.

The backend also won't expand the readonly sqrt call this pass inserts
to a sqrt instruction under strictfp. So we end up with 2 libcalls as
seen here. https://godbolt.org/z/oax5zMEWd

Fix these things by disabling the pass.

Differential Revision: https://reviews.llvm.org/D104479