Cleanup unused static symbols
For x86, the following static symbols are used anymore:
;; Following are all long-floats.
*fp-constant-0l0*
*fp-constant-1l0*
*fp-constant-pi*
*fp-constant-l2t*
*fp-constant-l2e*
*fp-constant-lg2*
*fp-constant-ln2*
since we don't support long-floats and we don't support x87 anymore. For sse2, we also don't use
;; The FP constants
*fp-constant-1d0*
*fp-constant-1s0*
In addition *fp-constant-0s0*
is misnamed. It should be *fp-constant-0f0*
.