remove unused initialisations

Reviewed-by: NTomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/13577)

crypto/aes/aes_ige.c

@@ -50,7 +50,7 @@ void AES_ige_encrypt(const unsigned char *in, unsigned char *out,
                      unsigned char *ivec, const int enc)
 {
     size_t n;
-    size_t len = length;
+    size_t len = length / AES_BLOCK_SIZE;
 
     if (length == 0)
         return;
@@ -59,8 +59,6 @@ void AES_ige_encrypt(const unsigned char *in, unsigned char *out,
     OPENSSL_assert((AES_ENCRYPT == enc) || (AES_DECRYPT == enc));
     OPENSSL_assert((length % AES_BLOCK_SIZE) == 0);
 
-    len = length / AES_BLOCK_SIZE;
-
     if (AES_ENCRYPT == enc) {
         if (in != out &&
             (UNALIGNED_MEMOPS_ARE_FAST

crypto/x509/by_dir.c

@@ -237,7 +237,6 @@ static int get_cert_by_subject_ex(X509_LOOKUP *xl, X509_LOOKUP_TYPE type,
     if (type == X509_LU_X509) {
         data.st_x509.cert_info.subject = (X509_NAME *)name; /* won't modify it */
         stmp.data.x509 = &data.st_x509;
-        postfix = "";
     } else if (type == X509_LU_CRL) {
         data.crl.crl.issuer = (X509_NAME *)name; /* won't modify it */
         stmp.data.crl = &data.crl;

providers/implementations/keymgmt/rsa_kmgmt.c

@@ -327,16 +327,13 @@ static int rsa_get_params(void *key, OSSL_PARAM params[])
      */
     if ((p = OSSL_PARAM_locate(params,
                                OSSL_PKEY_PARAM_MANDATORY_DIGEST)) != NULL
-        && rsa_type == RSA_FLAG_TYPE_RSASSAPSS) {
-        const char *mdname = RSA_PSS_DEFAULT_MD;
+        && rsa_type == RSA_FLAG_TYPE_RSASSAPSS
+        && !ossl_rsa_pss_params_30_is_unrestricted(pss_params)) {
+        const char *mdname =
+            ossl_rsa_oaeppss_nid2name(ossl_rsa_pss_params_30_hashalg(pss_params));
 
-        if (!ossl_rsa_pss_params_30_is_unrestricted(pss_params)) {
-            mdname =
-                ossl_rsa_oaeppss_nid2name(ossl_rsa_pss_params_30_hashalg(pss_params));
-
-            if (mdname == NULL || !OSSL_PARAM_set_utf8_string(p, mdname))
-                return 0;
-        }
+        if (mdname == NULL || !OSSL_PARAM_set_utf8_string(p, mdname))
+            return 0;
     }
     return (rsa_type != RSA_FLAG_TYPE_RSASSAPSS
             || ossl_rsa_pss_params_30_todata(pss_params, NULL, params))