MIPS: KVM: Fix a build warning about variable set but not used

After commit 411740f5422a ("KVM: MIPS/MMU: Implement KVM_CAP_SYNC_MMU")
old_pte is no longer used in kvm_mips_map_page(). So remove it to fix a
build warning about variable set but not used:

   arch/mips/kvm/mmu.c: In function 'kvm_mips_map_page':
>> arch/mips/kvm/mmu.c:701:29: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable]
     701 |         pte_t *ptep, entry, old_pte;
         |                             ^~~~~~~

Cc: [email protected]
Fixes: 411740f5422a960 ("KVM: MIPS/MMU: Implement KVM_CAP_SYNC_MMU")
Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Signed-off-by: Huacai Chen <[email protected]>
Reviewed-by: Philippe Mathieu-Daudé <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>

0 files changed, 0 insertions, 0 deletions