Simplify css.accessibility.MSAAService and corresponding XMSAAService

Change-Id: I96c69e871aa7b20cdac9751a64faa5e436f31a1f
(cherry picked from commit f3f4d9ec0f0eaa1aebdfebe831021a9d96e63f58)
Improve debug output

Change-Id: If09b4c0452d2e436be146a789edf85b1087d74e2
(cherry picked from commit d7791c933d8f7545b2535fe1a6d706008d2f9605)
No need for default component_getImplementationEnvironment function any more

Change-Id: Ia03e2797d80429284964987d07ebc033346a7ac0
(cherry picked from commit 1917dacaf2f3e29caadcac09162fe9b2158a45d1)
Remove unused exports.dxp file

Change-Id: Ic4313d9d1caea6448749c5c010ea9a034a75a907
(cherry picked from commit 36223cbe8b9a80827a8ec49c031540ea62c23c6d)