Remove unused method in ColumnMetadata

Author: suddendust

document-store/src/main/java/org/hypertrace/core/documentstore/commons/ColumnMetadata.java

@@ -7,7 +7,5 @@ public interface ColumnMetadata {
 
   DataType getCanonicalType();
 
-  String getInternalType();
-
   boolean isNullable();
 }

document-store/src/main/java/org/hypertrace/core/documentstore/commons/SchemaRegistry.java

@@ -7,5 +7,7 @@ public interface SchemaRegistry<T extends ColumnMetadata> {
 
   Map<String, T> getSchema(String tableName);
 
+  void invalidate(String tableName);
+
   Optional<T> getColumnOrRefresh(String tableName, String colName);
 }