drm/docs: rip out removed driver flags documentation

I've forgotten this and shuffling all the little pieces into the
respective patches is rather cumbersome ...
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Documentation/DocBook/drm.tmpl

@@ -155,13 +155,6 @@
               will become a fatal error.
             </para></listitem>
           </varlistentry>
-          <varlistentry>
-            <term>DRIVER_USE_MTRR</term>
-            <listitem><para>
-              Driver uses MTRR interface for mapping memory, the DRM core will
-              manage MTRR resources. Deprecated.
-            </para></listitem>
-          </varlistentry>
           <varlistentry>
             <term>DRIVER_PCI_DMA</term>
             <listitem><para>
@@ -194,28 +187,6 @@
               support shared IRQs (note that this is required of PCI  drivers).
             </para></listitem>
           </varlistentry>
-          <varlistentry>
-            <term>DRIVER_IRQ_VBL</term>
-            <listitem><para>Unused. Deprecated.</para></listitem>
-          </varlistentry>
-          <varlistentry>
-            <term>DRIVER_DMA_QUEUE</term>
-            <listitem><para>
-              Should be set if the driver queues DMA requests and completes them
-              asynchronously.  Deprecated.
-            </para></listitem>
-          </varlistentry>
-          <varlistentry>
-            <term>DRIVER_FB_DMA</term>
-            <listitem><para>
-              Driver supports DMA to/from the framebuffer, mapping of frambuffer
-              DMA buffers to userspace will be supported. Deprecated.
-            </para></listitem>
-          </varlistentry>
-          <varlistentry>
-            <term>DRIVER_IRQ_VBL2</term>
-            <listitem><para>Unused. Deprecated.</para></listitem>
-          </varlistentry>
           <varlistentry>
             <term>DRIVER_GEM</term>
             <listitem><para>