spu: Remove vec_extract_even/odd and vec_interleave expanders.

spu: Remove vec_extract_even/odd and vec_interleave expanders.

        * config/spu/spu.md (vec_extract_evenv4si, vec_extract_evenv4sf,
        vec_extract_evenv8hi, vec_extract_evenv16qi, vec_extract_oddv4si,
        vec_extract_oddv4sf, vec_extract_oddv8hi, vec_extract_oddv16qi,
        vec_interleave_highv4sf, vec_interleave_lowv4sf,
        vec_interleave_highv4si, vec_interleave_lowv4si,
        vec_interleave_highv8hi, vec_interleave_lowv8hi,
        vec_interleave_highv16qi, vec_interleave_lowv16qi): Remove.

From-SVN: r180451