feat: deprecate legacy APIs (#304)

* feat: deprecation of legacy APIs

* feat: deprecate plsql language

Author: HaydenOrz

src/grammar/plsql/PlSqlLexer.g4

@@ -1,13 +1,4 @@
-export {
-    MySQL,
-    FlinkSQL,
-    SparkSQL,
-    HiveSQL,
-    PostgreSQL,
-    TrinoSQL,
-    ImpalaSQL,
-    PLSQL,
-} from './parser';
+export { MySQL, FlinkSQL, SparkSQL, HiveSQL, PostgreSQL, TrinoSQL, ImpalaSQL } from './parser';
 
 export {
     MySqlParserListener,
@@ -18,8 +9,6 @@ export {
     SparkSqlParserVisitor,
     HiveSqlParserListener,
     HiveSqlParserVisitor,
-    PlSqlParserListener,
-    PlSqlParserVisitor,
     PostgreSqlParserListener,
     PostgreSqlParserVisitor,
     TrinoSqlListener,
@@ -30,14 +19,6 @@ export {
 
 export { EntityContextType } from './parser/common/types';
 
-export {
-    /**
-     * @deprecated SyntaxContextType has been renamed to {@link EntityContextType},
-     * It will be removed when the stable version is released.
-     */
-    EntityContextType as SyntaxContextType,
-} from './parser/common/types';
-
 export { StmtContextType } from './parser/common/entityCollector';
 
 export type { CaretPosition, Suggestions, SyntaxSuggestion } from './parser/common/types';
@@ -47,8 +28,3 @@ export type { WordRange, TextSlice } from './parser/common/textAndWord';
 export type { SyntaxError, ParseError, ErrorListener } from './parser/common/parseErrorListener';
 
 export type { StmtContext, EntityContext } from './parser/common/entityCollector';
-
-/**
- * @deprecated Legacy utils will be removed when the stable version is released.
- */
-export * from './utils';

src/grammar/plsql/PlSqlParser.g4

@@ -7,9 +7,6 @@ export { MySqlParserVisitor } from './mysql/MySqlParserVisitor';
 export { HiveSqlParserListener } from './hive/HiveSqlParserListener';
 export { HiveSqlParserVisitor } from './hive/HiveSqlParserVisitor';
 
-export { PlSqlParserListener } from './plsql/PlSqlParserListener';
-export { PlSqlParserVisitor } from './plsql/PlSqlParserVisitor';
-
 export { SparkSqlParserListener } from './spark/SparkSqlParserListener';
 export { SparkSqlParserVisitor } from './spark/SparkSqlParserVisitor';