on H2 after 2.0 don't need column type workaround

Apparently H2 correctly reports column types via JDBC metadata
since 2.0, so this workaround is unnecessary.

Also add a default mapping for DECIMAL in superclass, just for
completeness.

cc @famod

Author: gavinking

hibernate-core/src/main/java/org/hibernate/dialect/Dialect.java

@@ -210,6 +210,7 @@ protected Dialect() {
 		registerColumnType( Types.FLOAT, "float($p)" );
 		registerColumnType( Types.DOUBLE, "double precision" );
 		registerColumnType( Types.NUMERIC, "numeric($p,$s)" );
+		registerColumnType( Types.DECIMAL, "decimal($p,$s)" );
 		registerColumnType( Types.REAL, "real" );
 
 		registerColumnType( Types.DATE, "date" );

hibernate-core/src/main/java/org/hibernate/dialect/H2Dialect.java

@@ -122,7 +122,7 @@ public H2Dialect() {
 		registerColumnType( Types.BIT, "boolean" );
 		registerColumnType( Types.CHAR, "char($l)" );
 		registerColumnType( Types.DATE, "date" );
-		registerColumnType( Types.DECIMAL, buildId >= 201 ? "numeric($p,$s)" : "decimal($p,$s)" );
+		registerColumnType( Types.DECIMAL, "decimal($p,$s)" );
 		registerColumnType( Types.NUMERIC, buildId >= 201 ? "numeric($p,$s)" : "decimal($p,$s)" );
 		registerColumnType( Types.DOUBLE, "double" );
 		registerColumnType( Types.FLOAT, "float" );