Revert "Implements more pack/unpack states. Pack: row length, skip rows, skip pixels. Unpack: image height, skip images, skip rows, skip pixels."

This is causing failures in dEQP-GLES3.functional.texture.specification.teximage3d_depth_pbo.depth_component24_2d_array

First failing build on the bot:
http://build.chromium.org/p/chromium.gpu.fyi/builders/Win7%20Release%20dEQP%20%28NVIDIA%29/builds/3635

Please fix the failure and re-land your CL with the fix.

BUG=angleproject:512
BUG=angleproject:1095

This reverts commit f1bb3f0569d5ef41b17f8ad0add7308f9d0f0de1.

Change-Id: I30f61db888b0adf73a1d98bbeeb2428068119627
Reviewed-on: https://chromium-review.googlesource.com/304990
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Jamie Madill <jmadill@chromium.org>
diff --git a/src/libANGLE/validationES.cpp b/src/libANGLE/validationES.cpp
index ee096ce..d233931 100644
--- a/src/libANGLE/validationES.cpp
+++ b/src/libANGLE/validationES.cpp
@@ -1057,9 +1057,7 @@
     GLenum sizedInternalFormat = GetSizedInternalFormat(format, type);
     const InternalFormat &sizedFormatInfo = GetInternalFormatInfo(sizedInternalFormat);
 
-    GLsizei outputPitch =
-        sizedFormatInfo.computeRowPitch(type, width, context->getState().getPackAlignment(),
-                                        context->getState().getPackRowLength());
+    GLsizei outputPitch = sizedFormatInfo.computeRowPitch(type, width, context->getState().getPackAlignment(), 0);
     // sized query sanity check
     if (bufSize)
     {