crypto: sha-mb - remove a bogus NULL check

This can't be NULL and we dereferenced it earlier.  Smatch used to
ignore these things where the pointer was obviously non-NULL but I've
found that sometimes the intention was to check something else so we
were maybe missing bugs.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Acked-by: NTim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

arch/x86/crypto/sha-mb/sha1_mb.c

@@ -204,8 +204,7 @@ static struct sha1_hash_ctx *sha1_ctx_mgr_resubmit(struct sha1_ctx_mgr *mgr, str
 			continue;
 		}
 
-		if (ctx)
-			ctx->status = HASH_CTX_STS_IDLE;
+		ctx->status = HASH_CTX_STS_IDLE;
 		return ctx;
 	}