Remove cheap/any texture distinction from SkImageGenerator.

With the removal of rescaling of NPOT textures this no longer matters.

Change-Id: I313e895407c3a2c616e6113a5bde75dc6a167e7c
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/273519
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Auto-Submit: Brian Salomon <bsalomon@google.com>
diff --git a/src/gpu/GrBitmapTextureMaker.cpp b/src/gpu/GrBitmapTextureMaker.cpp
index 957aebb..5c7a85a 100644
--- a/src/gpu/GrBitmapTextureMaker.cpp
+++ b/src/gpu/GrBitmapTextureMaker.cpp
@@ -39,12 +39,7 @@
     }
 }
 
-GrSurfaceProxyView GrBitmapTextureMaker::refOriginalTextureProxyView(bool willBeMipped,
-                                                                     AllowedTexGenType onlyIfFast) {
-    if (AllowedTexGenType::kCheap == onlyIfFast) {
-        return {};
-    }
-
+GrSurfaceProxyView GrBitmapTextureMaker::refOriginalTextureProxyView(bool willBeMipped) {
     GrProxyProvider* proxyProvider = this->context()->priv().proxyProvider();
     sk_sp<GrTextureProxy> proxy;
     GrSwizzle swizzle;