remove needless and misleading malloc failure error messages of PKCS12_SAFEBAG_create_pkcs8_encrypt

Reviewed-by: NRich Salz <rsalz@openssl.org>
Reviewed-by: NMatt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6217)

crypto/pkcs12/p12_sbag.c

@@ -146,25 +146,17 @@ PKCS12_SAFEBAG *PKCS12_SAFEBAG_create_pkcs8_encrypt(int pbe_nid,
     X509_SIG *p8;
 
     pbe_ciph = EVP_get_cipherbynid(pbe_nid);
-
     if (pbe_ciph)
         pbe_nid = -1;
 
     p8 = PKCS8_encrypt(pbe_nid, pbe_ciph, pass, passlen, salt, saltlen, iter,
                        p8inf);
-
-    if (p8 == NULL) {
-        PKCS12err(PKCS12_F_PKCS12_SAFEBAG_CREATE_PKCS8_ENCRYPT, ERR_R_MALLOC_FAILURE);
+    if (p8 == NULL)
         return NULL;
-    }
 
     bag = PKCS12_SAFEBAG_create0_pkcs8(p8);
-
-    if (bag == NULL) {
-        PKCS12err(PKCS12_F_PKCS12_SAFEBAG_CREATE_PKCS8_ENCRYPT, ERR_R_MALLOC_FAILURE);
+    if (bag == NULL)
         X509_SIG_free(p8);
-        return NULL;
-    }
 
     return bag;
 }