slow-work got killed in commit 
181a51f6e0. This means that since v2.6.36
there is no Kconfig symbol SLOW_WORK. Apparently selecting that symbol
is a nop. Drop that select.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>
        depends on (AGP || AGP=n) && !EMULATED_CMPXCHG && MMU
        select I2C
        select I2C_ALGOBIT
-       select SLOW_WORK
        help
          Kernel-level support for the Direct Rendering Infrastructure (DRI)
          introduced in XFree86 4.0. If you say Y here, you need to select