Remove the option of disabling explicit resource allocation

We're burning our boats behind us. Succeed or die trying!

Change-Id: I6a9f71b758a6ae7b090c5221ab12a5ab4d166b47
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/209647
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
diff --git a/src/gpu/GrResourceProvider.cpp b/src/gpu/GrResourceProvider.cpp
index 622cea2..d4346cd 100644
--- a/src/gpu/GrResourceProvider.cpp
+++ b/src/gpu/GrResourceProvider.cpp
@@ -30,11 +30,9 @@
 #define ASSERT_SINGLE_OWNER \
     SkDEBUGCODE(GrSingleOwner::AutoEnforce debug_SingleOwner(fSingleOwner);)
 
-GrResourceProvider::GrResourceProvider(GrGpu* gpu, GrResourceCache* cache, GrSingleOwner* owner,
-                                       bool explicitlyAllocateGPUResources)
+GrResourceProvider::GrResourceProvider(GrGpu* gpu, GrResourceCache* cache, GrSingleOwner* owner)
         : fCache(cache)
         , fGpu(gpu)
-        , fExplicitlyAllocateGPUResources(explicitlyAllocateGPUResources)
 #ifdef SK_DEBUG
         , fSingleOwner(owner)
 #endif