[TASK] Remove fields that are auto generated by the schema manager

ext_tables.sql

@@ -2,7 +2,7 @@
 # Table structure for table 'pages'
 #
 CREATE TABLE pages (
-	tx_languagevisibility_visibility text NOT NULL,
+	tx_languagevisibility_visibility text NOT NULL
 );
 
 #
@@ -16,14 +16,8 @@ CREATE TABLE tt_content (
 # Table structure for table 'tx_languagevisibility_visibility_flag'
 #
 CREATE TABLE tx_languagevisibility_visibility_flag (
-	uid int(11) NOT NULL auto_increment,
-	pid int(11) DEFAULT '0' NOT NULL,
-	tstamp int(11) unsigned DEFAULT '0' NOT NULL,
-	crdate int(11) unsigned DEFAULT '0' NOT NULL,
-	cruser_id int(11) unsigned DEFAULT '0' NOT NULL,
 	record_table text NOT NULL,
 	record_uid text DEFAULT '' NOT NULL,
 	record_language_uid int(11) DEFAULT '0' NOT NULL,
-	flag text NOT NULL,
-	PRIMARY KEY (uid)
+	flag text NOT NULL
 );