update obd: fix multi-threading transfer -- ssh banner error

tools/deploy/obd/config.yaml.template

@@ -5,7 +5,7 @@ oceanbase-ce:
   global: 
     # for default system config used by farm, please see tools/deploy/obd/observer.include.yaml
     # You can also specify the configuration directly below (stored locally, switching the working directory and redeploying will still take effect)
-    devname: lo
+    production_mode: false
     # memory_limit: '8G'
     # system_memory: '1G'
     # datafile_size: '20G'

tools/deploy/obd/core-test.yaml.template

@@ -3,7 +3,6 @@ oceanbase-ce:
   tag: latest
   include: obd/observer.include.yaml
   global: 
-    devname: lo
     memory_limit: '8G'
     system_memory: '1G'
     datafile_size: '20G'

tools/deploy/obd/obdtest.config.yaml.template

@@ -15,7 +15,6 @@
     - src_path: {{%% DEPLOY_PATH %%}}/wallet
       target_path: wallet
   global:
-    devname: lo
     production_mode: false
     cluster_id: 1
     memory_limit: '60G'

tools/deploy/obd/tpch.yaml.template

@@ -9,7 +9,6 @@ oceanbase-ce:
     home_path: ${home_path}
   global:
     production_mode: false
-    devname: lo
     cluster_id: 1
     memory_limit: '80G'
     datafile_disk_percentage: '50'