Revert "Reland "Have a GrBackendFormat be stored on gpu proxies.""

This reverts commit 2f9a5ea639925f38785f4d3a0af237822007cfd6.

Reason for revert: breaking fuchsia

Original change's description:
> Reland "Have a GrBackendFormat be stored on gpu proxies."
> 
> This reverts commit 919c9e77c3492af766ff5982acda76ee49da3168.
> 
> Reason for revert: Flutter change has landed and fixed memory issue.
> 
> Original change's description:
> > Revert "Have a GrBackendFormat be stored on gpu proxies."
> >
> > This reverts commit 51b1c12bbc2fa3f8d4faa29ad19c6f3cb34837ce.
> >
> > Reason for revert: reverting till flutter gets to 1.1 to fix build issues.
> >
> > Original change's description:
> > > Have a GrBackendFormat be stored on gpu proxies.
> > >
> > > Bug: skia:
> > > Change-Id: Iaf1fb24ab29a61d44e5fa59a5e0867ed02dcda90
> > > Reviewed-on: https://skia-review.googlesource.com/c/168021
> > > Reviewed-by: Brian Osman <brianosman@google.com>
> > > Commit-Queue: Greg Daniel <egdaniel@google.com>
> >
> > TBR=egdaniel@google.com,bsalomon@google.com,brianosman@google.com
> >
> > Change-Id: I574fdc084ef5994596c51fb0d60423b5dc01b885
> > No-Presubmit: true
> > No-Tree-Checks: true
> > No-Try: true
> > Bug: chromium:903701 chromium:903756
> > Reviewed-on: https://skia-review.googlesource.com/c/169835
> > Commit-Queue: Greg Daniel <egdaniel@google.com>
> > Reviewed-by: Greg Daniel <egdaniel@google.com>
> 
> TBR=egdaniel@google.com,bsalomon@google.com,brianosman@google.com
> 
> Change-Id: Ifd9b6b8e194af9fb9258fa626644e76e6ecf090d
> Bug: chromium:903701 chromium:903756
> Reviewed-on: https://skia-review.googlesource.com/c/170104
> Commit-Queue: Greg Daniel <egdaniel@google.com>
> Reviewed-by: Greg Daniel <egdaniel@google.com>
> Reviewed-by: Brian Osman <brianosman@google.com>

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

Change-Id: Ia0556355e5775b2100901b7bfa37f97bb6ccd90f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:903701 chromium:903756
Reviewed-on: https://skia-review.googlesource.com/c/171002
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
diff --git a/src/gpu/ccpr/GrCCAtlas.cpp b/src/gpu/ccpr/GrCCAtlas.cpp
index 6dc523d..0d1f9d9 100644
--- a/src/gpu/ccpr/GrCCAtlas.cpp
+++ b/src/gpu/ccpr/GrCCAtlas.cpp
@@ -72,13 +72,6 @@
 
     fTopNode = skstd::make_unique<Node>(nullptr, 0, 0, fWidth, fHeight);
 
-    // TODO: don't have this rely on the GrPixelConfig
-    GrSRGBEncoded srgbEncoded = GrSRGBEncoded::kNo;
-    GrColorType colorType = GrPixelConfigToColorTypeAndEncoding(pixelConfig, &srgbEncoded);
-
-    const GrBackendFormat format =
-            caps.getBackendFormatFromGrColorType(colorType, srgbEncoded);
-
     fTextureProxy = GrProxyProvider::MakeFullyLazyProxy(
             [this, pixelConfig](GrResourceProvider* resourceProvider) {
                     if (!resourceProvider) {
@@ -94,7 +87,7 @@
                     }
                     return fBackingTexture;
             },
-            format, GrProxyProvider::Renderable::kYes, kTextureOrigin, pixelConfig, caps);
+            GrProxyProvider::Renderable::kYes, kTextureOrigin, pixelConfig, caps);
 }
 
 GrCCAtlas::~GrCCAtlas() {