Remove most GrCoordTransform code

All coord transforms were identity, so this enshrines that
knowledge, then transitively removes a large amount of code.

Bug: skia:10416
Change-Id: Iae4af9ca21590bced1ce9fce3ab807f6cceaebd4
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/300234
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
diff --git a/src/gpu/effects/generated/GrDeviceSpaceEffect.cpp b/src/gpu/effects/generated/GrDeviceSpaceEffect.cpp
index 0472548..915479c 100644
--- a/src/gpu/effects/generated/GrDeviceSpaceEffect.cpp
+++ b/src/gpu/effects/generated/GrDeviceSpaceEffect.cpp
@@ -58,12 +58,6 @@
 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrDeviceSpaceEffect);
 #if GR_TEST_UTILS
 std::unique_ptr<GrFragmentProcessor> GrDeviceSpaceEffect::TestCreate(GrProcessorTestData* d) {
-    std::unique_ptr<GrFragmentProcessor> fp;
-    // We have a restriction that explicit coords only work for FPs with zero or one
-    // coord transform.
-    do {
-        fp = GrProcessorUnitTest::MakeChildFP(d);
-    } while (fp->numCoordTransforms() > 1);
-    return GrDeviceSpaceEffect::Make(std::move(fp));
+    return GrDeviceSpaceEffect::Make(GrProcessorUnitTest::MakeChildFP(d));
 }
 #endif