Don't explicitly dereference function pointers

Be stylistically consistent.

Author: gilles-peskine-arm

library/psa_crypto.c

@@ -1231,9 +1231,9 @@ static psa_status_t psa_internal_export_key( const psa_key_slot_t *slot,
                    drv->key_management->p_export );
         if( method == NULL )
             return( PSA_ERROR_NOT_SUPPORTED );
-        return( ( *method )( drv_context,
-                             slot->data.se.slot_number,
-                             data, data_size, data_length ) );
+        return( method( drv_context,
+                        slot->data.se.slot_number,
+                        data, data_size, data_length ) );
     }
 #endif /* MBEDTLS_PSA_CRYPTO_SE_C */
 

library/psa_crypto_se.c

@@ -211,10 +211,10 @@ psa_status_t psa_find_se_slot_for_key(
     if( p_allocate == NULL )
         return( PSA_ERROR_NOT_SUPPORTED );
 
-    status = ( *p_allocate )( &driver->context,
-                              driver->internal.persistent_data,
-                              attributes,
-                              slot_number );
+    status = p_allocate( &driver->context,
+                         driver->internal.persistent_data,
+                         attributes,
+                         slot_number );
     return( status );
 }