Removal of migration scripts (both MATE and ubuntu one)

[Didier Roche]

Accepting 1:0.9.12.1+15.04.20150213-0ubuntu1, but the migration script should be checked.

For reference, IRC discussion:
didrocks | Mirv: why is there this remove unity script on upgrade?
didrocks | Mirv: the default profile plugin doesn't use unity for mate
didrocks | (see debian/mate.ini)
didrocks | Mirv: all the rest is good, but this part should be clarified
didrocks | bregma: yeah, I see it's a copy of my own migration script a while ago, but this was to transition from "default" to "ubuntu" session (and so, leave the default session with compiz without unityshell)
didrocks | bregma: If I'm right and can still read my code, no promise :p
didrocks | bregma: yeah, it's not really a biggy but I feel it's not of use (and will just create a delay at startup), so better to check
didrocks | bregma: maybe you can even clear my old migration script, the LTS has passed :)
bregma | didrocks, would it be acceptable to promote the current MATE changes as-is and open a bug to remove all the migration stuff before Vivid release?

[Launchpad Janitor (janitor)]

This bug was fixed in the package compiz - 1:0.9.12.1+15.10.20150511-0ubuntu1

---------------
compiz (1:0.9.12.1+15.10.20150511-0ubuntu1) wily; urgency=medium

  [ Alberts Muktupāvels ]
  * Remove unused setting from gtk-window-decorator.
  * Stop using ccp_plugin.patch only in ubuntu, apply it to source and
    remove it from debian/patches.

  [ Martin Wimpress ]
  * Default MATE keybindings to be consistent with other MATE WMs.

  [ Stephen M. Webb ]
  * OpenGL plugin: refine GLTexture API to adhere to class invariants
    (LP: #1101594)
  * removed redundant 12.04 migration scripts (LP: #1400493, #1423566)

 -- CI Train Bot <email address hidden> Mon, 11 May 2015 16:39:16 +0000