Chris Bracken 507f0c79aa Eliminate iOS depth/stencil buffer code (flutter/engine#4802)
As of d5fdb1a189f3bf5973ec3e667c92cb906816946b, depth/stencil buffer
attachments are never used. This patch eliminates generation and binding
of depth/stencil render buffers since these code paths are no longer hit.
2018-03-16 16:47:06 -07:00
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