Revert "[AArch64] Added vselect patterns with float and double types"

This reverts commit r199242.

It is causing CodeGen/AArch64/neon-bsl.ll to fail.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199248 91177308-0d34-0410-b5e6-96231b3b80d8