[Bug target/78762] Regression: Splitting unaligned AVX loads also when AVX2 is enabled

[venkataramanan.kumar at amd dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78762

--- Comment #15 from Venkataramanan <venkataramanan.kumar at amd dot com> ---
Considering this PR, removing the tuning (splitting of unaligned avx256 loads)
for generic is suggested.