Update on "[ET-VK][Ops] common test utils for converting aten types to vulkan types"

most custom ops utilize some aten to executorch scalartype conversion. this test file standardized that across those files

Differential Revision: [D76464550](https://our.internmc.facebook.com/intern/diff/D76464550/)

cc SS-JIA manuelcandales cbilgin

[ghstack-poisoned]

Author: morelos

backends/vulkan/test/op_tests/targets.bzl

@@ -171,15 +171,6 @@ def define_common_targets(is_fbcode = False):
             "//executorch/extension/tensor:tensor",
         ]
     )
-    define_test_targets(
-        "quantize_test",
-        extra_deps = [
-            ":test_utils",
-            "//executorch/kernels/quantized/cpu:op_quantize",
-            "//executorch/extension/tensor:tensor",
-            "//executorch/extension/aten_util:aten_bridge",
-        ]
-    )
     define_test_targets(
         "linear_weight_int4_test",
         extra_deps = [