delete empty profile

common/proto/table_definition.proto

@@ -85,6 +85,10 @@ service TableDefinition {
 
   // Drops a table and its metadata, then deletes the profile if it becomes empty.
   rpc DeleteTable(DeleteTableRequest) returns (DeleteTableResponse);
+
+  // Deletes an entire profile only when none of its user or backend-managed
+  // tables, audit stores, document stores, or accounting stores contain data.
+  rpc DeleteProfile(DeleteProfileRequest) returns (DeleteProfileResponse);
 }
 
 message CreateCustomExchangeRatesTableRequest {
@@ -716,6 +720,16 @@ message DeleteTableResponse {
   string message = 2;
 }
 
+message DeleteProfileRequest {
+  string profile_name = 1;
+}
+
+message DeleteProfileResponse {
+  bool success = 1;
+  string message = 2;
+  int32 tables_deleted = 3;
+}
+
 // How a column type is spelled in ColumnDefinition.field_type.
 enum ColumnTypeSpelling {
   // The name is the whole spelling: "text", "money", "gtin_13".