refactor: fix geo_x and geo_y ops

Author: chelsea-lin

bigframes/core/compile/sqlglot/expressions/geo_ops.py

@@ -108,12 +108,12 @@ def _(expr: TypedExpr, op: ops.GeoStSimplifyOp) -> sge.Expression:
 
 @register_unary_op(ops.geo_x_op)
 def _(expr: TypedExpr) -> sge.Expression:
-    return sge.func("SAFE.ST_X", expr.expr)
+    return sge.func("ST_X", expr.expr)
 
 
 @register_unary_op(ops.geo_y_op)
 def _(expr: TypedExpr) -> sge.Expression:
-    return sge.func("SAFE.ST_Y", expr.expr)
+    return sge.func("ST_Y", expr.expr)
 
 
 @register_binary_op(ops.GeoStDistanceOp, pass_op=True)

tests/unit/core/compile/sqlglot/expressions/snapshots/test_geo_ops/test_geo_x/out.sql

@@ -5,7 +5,7 @@ WITH `bfcte_0` AS (
 ), `bfcte_1` AS (
   SELECT
     *,
-    SAFE.ST_X(`geography_col`) AS `bfcol_1`
+    ST_X(`geography_col`) AS `bfcol_1`
   FROM `bfcte_0`
 )
 SELECT

tests/unit/core/compile/sqlglot/expressions/snapshots/test_geo_ops/test_geo_y/out.sql

@@ -5,7 +5,7 @@ WITH `bfcte_0` AS (
 ), `bfcte_1` AS (
   SELECT
     *,
-    SAFE.ST_Y(`geography_col`) AS `bfcol_1`
+    ST_Y(`geography_col`) AS `bfcol_1`
   FROM `bfcte_0`
 )
 SELECT