mem-cache: Remove a std::move clang says is unnecessary.

It also says it prevents an optimization.

Change-Id: I9c21dc1a0c53cf70cefd1400564de07d1e845a75
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/23124
Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
Maintainer: Gabe Black <gabeblack@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>
1 file changed