Revert "mi: Shortcut miDoCopy/miCopyArea based on clipList"

This reverts commit f665a9c9.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Acked-by: Martin Peres <martin.peres@mupuf.org>
Closes: xorg/xserver#1108
Closes: xorg/xserver#1128
4 jobs for revert-window-unmap-and-mi-blit in 6 minutes and 36 seconds (queued for 1 second)
Status Job ID Name Coverage
  Docker Image
passed #6979617
debian-buster

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  Build And Test
passed #6979618
autotools

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passed #6979619
meson

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passed #6979620
meson-noglamor

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