intel: Remove check for kernel 2.6.29.
intel: Remove check for kernel 2.6.29.

Now that we require 2.6.39, there's no need to also check for 2.6.29.
Calling drm_intel_bufmgr_gem_enable_fenced_relocs() without checking
should be safe, as it simply sets a flag.

This does remove the check for zero fences available, but that doesn't
seem worth checking.

Signed-off-by: Kenneth Graunke <bd2562f754ec92342f93f61c25d731e290a2ffa8@whitecape.org>
Reviewed-by: Daniel Vetter <c1b6782c4af8f0673da8923a0702a1832e5940f4@ffwll.ch>
Reviewed-by: Eric Anholt <96f164ad4d9b2b0dacf8ebee2bb1eeb3aa69adf1@anholt.net>

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