Revert non-trivial changes to upgrade scripts

synapse/storage/schema/delta/12/v12.sql

@@ -22,7 +22,7 @@ CREATE TABLE IF NOT EXISTS rejections(
 
 -- Push notification endpoints that users have configured
 CREATE TABLE IF NOT EXISTS pushers (
-  id BIGINT PRIMARY KEY,
+  id BIGINT PRIMARY KEY AUTOINCREMENT,
   user_name VARCHAR(150) NOT NULL,
   profile_tag VARCHAR(32) NOT NULL,
   kind VARCHAR(8) NOT NULL,
@@ -40,7 +40,7 @@ CREATE TABLE IF NOT EXISTS pushers (
 );
 
 CREATE TABLE IF NOT EXISTS push_rules (
-  id BIGINT PRIMARY KEY,
+  id BIGINT PRIMARY KEY AUTOINCREMENT,
   user_name VARCHAR(150) NOT NULL,
   rule_id VARCHAR(150) NOT NULL,
   priority_class TINYINT NOT NULL,

synapse/storage/schema/delta/13/v13.sql

@@ -14,7 +14,7 @@
  */
 
 CREATE TABLE IF NOT EXISTS application_services(
-    id BIGINT PRIMARY KEY,
+    id BIGINT PRIMARY KEY AUTOINCREMENT,
     url VARCHAR(150),
     token VARCHAR(150),
     hs_token VARCHAR(150),
@@ -23,7 +23,7 @@ CREATE TABLE IF NOT EXISTS application_services(
 );
 
 CREATE TABLE IF NOT EXISTS application_services_regex(
-    id BIGINT PRIMARY KEY,
+    id BIGINT PRIMARY KEY AUTOINCREMENT,
     as_id BIGINT NOT NULL,
     namespace INTEGER,  /* enum[room_id|room_alias|user_id] */
     regex VARCHAR(150),

synapse/storage/schema/delta/14/v14.sql

@@ -1,5 +1,5 @@
 CREATE TABLE IF NOT EXISTS push_rules_enable (
-  id BIGINT PRIMARY KEY,
+  id BIGINT PRIMARY KEY AUTOINCREMENT,
   user_name VARCHAR(150) NOT NULL,
   rule_id VARCHAR(150) NOT NULL,
   enabled TINYINT,