Revert of Initial work to get ETC1 data up to the GPU (https://codereview.chromium.org/302783002/)

Reason for revert:
ETC1 linking problems with chrome.

Original issue's description:
> Initial work to get ETC1 data up to the GPU
>
> Committed: http://code.google.com/p/skia/source/detail?r=15001

R=bsalomon@google.com, robertphillips@google.com
TBR=bsalomon@google.com, robertphillips@google.com
NOTREECHECKS=true
NOTRY=true

Author: krajcevski@google.com

Review URL: https://codereview.chromium.org/303273008

git-svn-id: http://skia.googlecode.com/svn/trunk/include@15004 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gpu/GrContext.h b/gpu/GrContext.h
index c54f2e6..5b7ef25 100644
--- a/gpu/GrContext.h
+++ b/gpu/GrContext.h
@@ -204,11 +204,10 @@
      *                  for different wrap modes on GPUs with limited NPOT
      *                  texture support). NULL implies clamp wrap modes.
      * @param desc      Description of the texture properties.
-     * @param cacheID   Cache-specific properties (e.g., texture gen ID)
+     * @param cacheID Cache-specific properties (e.g., texture gen ID)
      * @param srcData   Pointer to the pixel values.
      * @param rowBytes  The number of bytes between rows of the texture. Zero
-     *                  implies tightly packed rows. For compressed pixel configs, this
-     *                  field is ignored.
+     *                  implies tightly packed rows.
      * @param cacheKey  (optional) If non-NULL, we'll write the cache key we used to cacheKey.
      */
     GrTexture* createTexture(const GrTextureParams* params,
@@ -217,6 +216,7 @@
                              const void* srcData,
                              size_t rowBytes,
                              GrResourceKey* cacheKey = NULL);
+
     /**
      * Search for an entry based on key and dimensions. If found, ref it and return it. The return
      * value will be NULL if not found. The caller must balance with a call to unref.
diff --git a/gpu/GrTypes.h b/gpu/GrTypes.h
index 34f4e28..53e633d 100644
--- a/gpu/GrTypes.h
+++ b/gpu/GrTypes.h
@@ -641,26 +641,6 @@
 };
 
 /**
- * Returns the data size for the given compressed pixel config
- */ 
-static inline size_t GrCompressedFormatDataSize(GrPixelConfig config,
-                                                int width, int height) {
-    SkASSERT(GrPixelConfigIsCompressed(config));
-
-    switch (config) {
-        case kLATC_GrPixelConfig:
-        case kETC1_GrPixelConfig:
-            SkASSERT((width & 3) == 0);
-            SkASSERT((height & 3) == 0);
-            return (width >> 2) * (height >> 2) * 8;
-
-        default:
-            SkFAIL("Unknown compressed pixel config");
-            return 4 * width * height;
-    }
-}
-
-/**
  * This value translates to reseting all the context state for any backend.
  */
 static const uint32_t kAll_GrBackendState = 0xffffffff;