db/migrations: drop nextsyncat and description columns from shared remotes (#25064)

server/channels/db/migrations/mysql/000114_sharedchannelremotes_drop_nextsyncat_description.down.sql

@@ -0,0 +1 @@
+-- It is intentionally to not have rollback for sharedchannelremotes_drop_nextsyncat_description

server/channels/db/migrations/mysql/000114_sharedchannelremotes_drop_nextsyncat_description.up.sql

@@ -0,0 +1,29 @@
+SET @preparedStatement = (SELECT IF(
+    (
+        SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS
+        WHERE table_name = 'SharedChannelRemotes'
+        AND table_schema = DATABASE()
+        AND column_name = 'NextSyncAt'
+    ) > 0,
+    'ALTER TABLE SharedChannelRemotes DROP COLUMN NextSyncAt;',
+    'SELECT 1'
+));
+
+PREPARE alterIfExists FROM @preparedStatement;
+EXECUTE alterIfExists;
+DEALLOCATE PREPARE alterIfExists;
+
+SET @preparedStatement = (SELECT IF(
+    (
+        SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS
+        WHERE table_name = 'SharedChannelRemotes'
+        AND table_schema = DATABASE()
+        AND column_name = 'Description'
+    ) > 0,
+    'ALTER TABLE SharedChannelRemotes DROP COLUMN Description;',
+    'SELECT 1'
+));
+
+PREPARE alterIfExists FROM @preparedStatement;
+EXECUTE alterIfExists;
+DEALLOCATE PREPARE alterIfExists;