esx: Remove duplicated invalid-argument checks

Those checks are already performed at the public API level.

src/esx/esx_driver.c

@@ -1479,11 +1479,6 @@ esxListDomains(virConnectPtr conn, int *ids, int maxids)
     esxVI_VirtualMachinePowerState powerState;
     int count = 0;
 
-    if (ids == NULL || maxids < 0) {
-        ESX_ERROR(VIR_ERR_INVALID_ARG, "%s", _("Invalid argument"));
-        return -1;
-    }
-
     if (maxids == 0) {
         return 0;
     }
@@ -2895,11 +2890,6 @@ esxListDefinedDomains(virConnectPtr conn, char **const names, int maxnames)
     int count = 0;
     int i;
 
-    if (names == NULL || maxnames < 0) {
-        ESX_ERROR(VIR_ERR_INVALID_ARG, "%s", _("Invalid argument"));
-        return -1;
-    }
-
     if (maxnames == 0) {
         return 0;
     }

src/esx/esx_storage_driver.c

@@ -167,11 +167,6 @@ esxListStoragePools(virConnectPtr conn, char **const names, int maxnames)
     int count = 0;
     int i;
 
-    if (names == NULL || maxnames < 0) {
-        ESX_ERROR(VIR_ERR_INVALID_ARG, "%s", _("Invalid argument"));
-        return -1;
-    }
-
     if (maxnames == 0) {
         return 0;
     }