Fix 3 unworking configs (#882)

configs/centerpoint/centerpoint_0075voxel_second_secfpn_dcn_4x8_cyclic_tta_20e_nus.py

 _base_ = './centerpoint_0075voxel_second_secfpn_dcn_4x8_cyclic_20e_nus.py'
 
-test_cfg = dict(pts=dict(use_rotate_nms=True, max_num=500))
-
 point_cloud_range = [-54, -54, -5.0, 54, 54, 3.0]
 file_client_args = dict(backend='disk')
 class_names = [

configs/free_anchor/hv_pointpillars_regnet-1.6gf_fpn_sbn-all_free-anchor_strong-aug_4x8_3x_nus-3d.py

@@ -24,16 +24,16 @@ class_names = [
     'car', 'truck', 'trailer', 'bus', 'construction_vehicle', 'bicycle',
     'motorcycle', 'pedestrian', 'traffic_cone', 'barrier'
 ]
-# file_client_args = dict(backend='disk')
+file_client_args = dict(backend='disk')
 # Uncomment the following if use ceph or other file clients.
 # See https://mmcv.readthedocs.io/en/latest/api.html#mmcv.fileio.FileClient
 # for more details.
-file_client_args = dict(
-    backend='petrel',
-    path_mapping=dict({
-        './data/nuscenes/': 's3://nuscenes/nuscenes/',
-        'data/nuscenes/': 's3://nuscenes/nuscenes/'
-    }))
+# file_client_args = dict(
+#     backend='petrel',
+#     path_mapping=dict({
+#         './data/nuscenes/': 's3://nuscenes/nuscenes/',
+#         'data/nuscenes/': 's3://nuscenes/nuscenes/'
+#     }))
 train_pipeline = [
     dict(
         type='LoadPointsFromFile',

configs/free_anchor/hv_pointpillars_regnet-3.2gf_fpn_sbn-all_free-anchor_strong-aug_4x8_3x_nus-3d.py

@@ -24,16 +24,16 @@ class_names = [
     'car', 'truck', 'trailer', 'bus', 'construction_vehicle', 'bicycle',
     'motorcycle', 'pedestrian', 'traffic_cone', 'barrier'
 ]
-# file_client_args = dict(backend='disk')
+file_client_args = dict(backend='disk')
 # Uncomment the following if use ceph or other file clients.
 # See https://mmcv.readthedocs.io/en/latest/api.html#mmcv.fileio.FileClient
 # for more details.
-file_client_args = dict(
-    backend='petrel',
-    path_mapping=dict({
-        './data/nuscenes/': 's3://nuscenes/nuscenes/',
-        'data/nuscenes/': 's3://nuscenes/nuscenes/'
-    }))
+# file_client_args = dict(
+#     backend='petrel',
+#     path_mapping=dict({
+#         './data/nuscenes/': 's3://nuscenes/nuscenes/',
+#         'data/nuscenes/': 's3://nuscenes/nuscenes/'
+#     }))
 train_pipeline = [
     dict(
         type='LoadPointsFromFile',