alpha/translate: remve unused variables

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Richard Henderson  <rth@twiddle.net>
diff --git a/target-alpha/translate.c b/target-alpha/translate.c
index ad6c2ca..5d7454c 100644
--- a/target-alpha/translate.c
+++ b/target-alpha/translate.c
@@ -1663,7 +1663,7 @@
     uint32_t palcode;
     int32_t disp21, disp16, disp12;
     uint16_t fn11;
-    uint8_t opc, ra, rb, rc, fpfn, fn7, fn2, islit, real_islit;
+    uint8_t opc, ra, rb, rc, fpfn, fn7, islit, real_islit;
     uint8_t lit;
     ExitStatus ret;
 
@@ -1685,7 +1685,6 @@
     fn11 = (insn >> 5) & 0x000007FF;
     fpfn = fn11 & 0x3F;
     fn7 = (insn >> 5) & 0x0000007F;
-    fn2 = (insn >> 5) & 0x00000003;
     LOG_DISAS("opc %02x ra %2d rb %2d rc %2d disp16 %6d\n",
               opc, ra, rb, rc, disp16);