Use new LOD approximation rules for OpenGL ES

Use new LOD approximation rules for OpenGL ES

This change updates OpenGL ES texture LOD approximation bounds to match
Vulkan. Since rules are now same for both APIs the LodPrecision
parameter introduced in 9f0ff9f49ae3359d9b2e50f5d720fc77460d0f4f is
removed.

Affects:

dEQP-GLES2.texture.*
dEQP-GLES3.texture.*
dEQP-GLES31.texture.*

Khronos spec bug: 16179
Google bug: 28200359
Components: AOSP, Vulkan, Framework

Change-Id: I55ff2e6296c7947af7ee5b7cf915d24c260ae374
(cherry picked from commit 0b6dbeb93e83dcf3b55d2eccce7cb1517c2caee5)