target/ppc/mmu-radix64.c: Drop a local variable

The value is only used once so no need to introduce a local variable
for it.

Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
diff --git a/target/ppc/mmu-radix64.c b/target/ppc/mmu-radix64.c
index fefa55a..c1e4f00 100644
--- a/target/ppc/mmu-radix64.c
+++ b/target/ppc/mmu-radix64.c
@@ -185,7 +185,6 @@
                                    int mmu_idx, bool partition_scoped)
 {
     CPUPPCState *env = &cpu->env;
-    int need_prot;
 
     /* Check Page Attributes (pte58:59) */
     if ((pte & R_PTE_ATT) == R_PTE_ATT_NI_IO && access_type == MMU_INST_FETCH) {
@@ -210,8 +209,8 @@
     }
 
     /* Check if requested access type is allowed */
-    need_prot = prot_for_access_type(access_type);
-    if (need_prot & ~*prot) { /* Page Protected for that Access */
+    if (prot_for_access_type(access_type) & ~*prot) {
+        /* Page Protected for that Access */
         *fault_cause |= access_type == MMU_INST_FETCH ? SRR1_NOEXEC_GUARD :
                                                         DSISR_PROTFAULT;
         return true;