x86inc: remove misaligned cpu flag

Prevents a crash if the misaligned exception mask bit is
cleared for some reason.

Misaligned SSE functions are only used on AMD Phenom CPUs
and the benefit is miniscule. They also require modifying
the MXCSR control register and by removing those functions
we can get rid of that complexity altogether.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

libavutil/x86/x86inc.asm

@@ -757,11 +757,10 @@ SECTION .note.GNU-stack noalloc noexec nowrite progbits
 %assign cpuflags_cache64  (1<<17)
 %assign cpuflags_slowctz  (1<<18)
 %assign cpuflags_lzcnt    (1<<19)
-%assign cpuflags_misalign (1<<20)
-%assign cpuflags_aligned  (1<<21) ; not a cpu feature, but a function variant
-%assign cpuflags_atom     (1<<22)
-%assign cpuflags_bmi1     (1<<23)|cpuflags_lzcnt
-%assign cpuflags_bmi2     (1<<24)|cpuflags_bmi1
+%assign cpuflags_aligned  (1<<20) ; not a cpu feature, but a function variant
+%assign cpuflags_atom     (1<<21)
+%assign cpuflags_bmi1     (1<<22)|cpuflags_lzcnt
+%assign cpuflags_bmi2     (1<<23)|cpuflags_bmi1
 
 %define    cpuflag(x) ((cpuflags & (cpuflags_ %+ x)) == (cpuflags_ %+ x))
 %define notcpuflag(x) ((cpuflags & (cpuflags_ %+ x)) != (cpuflags_ %+ x))