Remove single-table mode

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

plugins/outputs/clickhouse/sample.conf

@@ -11,20 +11,8 @@
   ## Default TTL for data in the table (use ClickHouse syntax)
   ttl = "3 MONTH"
 
-  ## Table operation mode
-  ## Set to "single" to create a single table for all metrics.
-  ## Set to "multi" to create a new table for each metric.
-  # table_mode = "multi"
-
-  ## Single table configuration
-  # [outputs.clickhouse.single_table]
-    ## Table name
-    # table_name = "telegraf"
-
-  ## Multi table configuration
-  # [outputs.clickhouse.multi_table]
-    ## Table name prefix
-    # table_prefix = "telegraf"
+  ## Table name prefix
+  # table_prefix = "telegraf"
 
   ## Initial metric queue size
   ## Queue resizes automatically if the queue becomes too large.