Remove hardcoded types from the PIG domain

[alancai98]

There are currently some hardcoded types added to the PIG domain. See partiql.ion:

partiql-lang-kotlin/lang/resources/org/partiql/type-domains/partiql.ion

Lines 392 to 414 in fb79924

	// TODO: Remove these hardcoded nodes from the PIG domain once [https://github.com/partiql/partiql-lang-kotlin/issues/510]
	// Elastic Search types
	(es_boolean)
	(es_integer)
	(es_float)
	(es_text)
	(es_any)
	// SPARK Types
	(spark_short)
	(spark_integer)
	(spark_long)
	(spark_double)
	(spark_boolean)
	(spark_float)
	// RedShift Types
	(rs_varchar_max)
	(rs_integer)
	(rs_bigint)
	(rs_boolean)
	(rs_real) // float-32, RS aliases: FLOAT4
	(rs_double_precision) // float-64, RS aliases: FLOAT8, FLOAT

These types are temporary and should be removed as soon as possible so users don't take a dependency on these types. Removal of these types may cause downstream changes to AstDeserialization.kt, CustomTypeVisitorTransform.kt, StatementToExprNode, ExprValueType.kt, and SqlParserCustomTypeCatalogTests.kt.

There is no support for these types, beyond parsing and (de)serialization, and we are not aware of currently-active users. The effect of these nodes can be achieved with the generic (custom_type ...) node.

[lziq]

See #755 (comment) for the reason to remove.