Revert "Work around broken GL_TEXTURE_BINDING_EXTERNAL_OES query"

This reverts commit c169028a3dcb2392175a6b5cf3d19853dab5d430.
Work around broken GL_TEXTURE_BINDING_EXTERNAL_OES query

glGetIntegerv(GL_TEXTURE_BINDING_EXTERNAL_OES, &texture_id) returns
GL_INVALID_ENUM on older Android NVIDIA drivers.

Patch source:
https://github.com/tonyp/tonyp_device_lge_p990/blob/cm-11.0/patches/0001-Work-around-broken-GL_TEXTURE_BINDING_EXTERNAL_OES-q.patch

Signed-off-by: zombah <zombah@gmail.com>