target-microblaze: Remove unnecessary variable

Compress lines and remove the variable.

Signed-off-by: Shraddha Barke <shraddha.6596@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

target-microblaze/op_helper.c

diff --git a/target-microblaze/op_helper.c b/target-microblaze/op_helper.c
index 092c4b5..d324347 100644
--- a/target-microblaze/op_helper.c
+++ b/target-microblaze/op_helper.c
@@ -150,9 +150,7 @@
 
 uint32_t helper_carry(uint32_t a, uint32_t b, uint32_t cf)
 {
-    uint32_t ncf;
-    ncf = compute_carry(a, b, cf);
-    return ncf;
+    return compute_carry(a, b, cf);
 }
 
 static inline int div_prepare(CPUMBState *env, uint32_t a, uint32_t b)