Revert "Redesign program key construction"

This reverts commit bbbf1a7f50a303bd76163793bd5968c72f5f4432.

Reason for revert: D3D Failures

Original change's description:
> Redesign program key construction
>
> This does two things:
> 1) Moves responsibility for bit-packing portions of the key into the key
>    itself. A new GrKeyBuilder type manages adding bits, with asserts to
>    ensure a value always fits in the requested number. In theory this
>    will let us generate smaller keys overall, at the expense of slightly
>    more complex code during construction.
> 2) Adds a string label parameter for key methods that fold in data. For
>    new methods, the label is required. To ease migration, the old add32
>    does not require a label (yet). This will let us generate detailed,
>    human readable keys, either based on SK_DEBUG, or a runtime option
>    (if we're comfortable paying the cost).
>
> Bug: skia:11372
> Change-Id: Ib0f941551e0dbadabbd2a7de912b00e9e766b166
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/377876
> Commit-Queue: Brian Osman <brianosman@google.com>
> Reviewed-by: Brian Salomon <bsalomon@google.com>

TBR=bsalomon@google.com,robertphillips@google.com,brianosman@google.com

Change-Id: I7bfb20905c87083e84a1ea21bc53d63e882e2c68
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:11372
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/378777
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
diff --git a/src/gpu/gl/builders/GrGLProgramBuilder.cpp b/src/gpu/gl/builders/GrGLProgramBuilder.cpp
index 63d4c35..cb14885 100644
--- a/src/gpu/gl/builders/GrGLProgramBuilder.cpp
+++ b/src/gpu/gl/builders/GrGLProgramBuilder.cpp
@@ -166,7 +166,6 @@
         return;
     }
     sk_sp<SkData> key = SkData::MakeWithoutCopy(this->desc().asKey(), this->desc().keyLength());
-    const SkString& description = this->desc().description();
     if (fGpu->glCaps().programBinarySupport()) {
         // binary cache
         GrGLsizei length = 0;
@@ -187,7 +186,7 @@
             writer.writePad32(binary.get(), length);
 
             auto data = writer.snapshotAsData();
-            this->gpu()->getContext()->priv().getPersistentCache()->store(*key, *data, description);
+            this->gpu()->getContext()->priv().getPersistentCache()->store(*key, *data);
         }
     } else {
         // source cache, plus metadata to allow for a complete precompile
@@ -204,7 +203,7 @@
 
         auto data = GrPersistentCacheUtils::PackCachedShaders(isSkSL ? kSKSL_Tag : kGLSL_Tag,
                                                               shaders, &inputs, 1, &meta);
-        this->gpu()->getContext()->priv().getPersistentCache()->store(*key, *data, description);
+        this->gpu()->getContext()->priv().getPersistentCache()->store(*key, *data);
     }
 }