cleanup(sinsp): move clear to built_in_table

Signed-off-by: Grzegorz Nosek <[email protected]>

userspace/libsinsp/plugin_table_api.cpp

@@ -473,14 +473,6 @@ struct plugin_table_wrapper : public libsinsp::state::table<KeyType> {
 		return m_dyn_fields_as_base_class;
 	}
 
-	void clear_entries() override {
-		auto res = m_input->writer_ext->clear_table(m_input->table);
-		if(res != SS_PLUGIN_SUCCESS) {
-			throw sinsp_exception(table_input_error_prefix(m_owner, m_input.get()) +
-			                      "clear entries failure: " + m_owner->get_last_error());
-		}
-	}
-
 	// used only for foreach_entry below
 	struct table_iterator_state {
 		std::string err;

userspace/libsinsp/state/table.h

@@ -175,12 +175,6 @@ class base_table {
 		m_dynamic_fields = dynf;
 	}
 
-	/**
-	 * @brief Erase all the entries present in the table.
-	 * After invoking this function, entries_count() will return true.
-	 */
-	virtual void clear_entries() = 0;
-
 	/**
 	 * @brief Allocates and returns a new entry for the table. This is just
 	 * a factory method, the entry will not automatically added to the table.
@@ -322,6 +316,12 @@ class built_in_table : public table<KeyType> {
 	virtual std::shared_ptr<table_entry> add_entry(const KeyType& key,
 	                                               std::unique_ptr<table_entry> entry) = 0;
 
+	/**
+	 * @brief Erase all the entries present in the table.
+	 * After invoking this function, entries_count() will return true.
+	 */
+	virtual void clear_entries() = 0;
+
 	/**
 	 * @brief Removes an entry from the table with the given key.
 	 *