target/ppc/mmu_common.c: Remove unused field from mmu_ctx_t

The eaddr field of mmu_ctx_t is set once but never used so can be
removed.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>

target/ppc/mmu_common.c

diff --git a/target/ppc/mmu_common.c b/target/ppc/mmu_common.c
index 28adb3c..0a07023 100644
--- a/target/ppc/mmu_common.c
+++ b/target/ppc/mmu_common.c
@@ -40,7 +40,6 @@
 /* Context used internally during MMU translations */
 typedef struct {
     hwaddr raddr;      /* Real address             */
-    hwaddr eaddr;      /* Effective address        */
     int prot;          /* Protection bits          */
     hwaddr hash[2];    /* Pagetable hash values    */
     target_ulong ptem; /* Virtual segment ID | API */
@@ -348,7 +347,6 @@
 
     /* Perform segment based translation when no BATs matched */
     pr = FIELD_EX64(env->msr, MSR, PR);
-    ctx->eaddr = eaddr;
 
     sr = env->sr[eaddr >> 28];
     ctx->key = (((sr & 0x20000000) && pr) ||