Revert "wayland-egl: Don't trust EGL implementations to resize EGL window surfaces"

This reverts commit ba9c70a4ba343dd40e268d2111dc6be7c05f66f2.

This is a workaround for platform-level issues, and it causes issues of its own
(horrible visual flickering etc).
Remove comments causing false scriptlet warnings.
Merge pull request #28 from rburchell/master

Revert EGL workaround causing visual regression.