Unused imports and SuppressWarnings dropping.

Change-Id: I3a40a0f049f018a7be98acf82b81bb3288600243
More unneeded suppress warnings removal.

The rest of the change is done by save actions.
Change-Id: I9b08ffde6411d93a060832e80203b4edd687e3e5
Merge branch 'development' of https://github.com/fabioz/Pydev into development
Merge pull request #59 from akurtakov/development

Unused imports and SuppressWarnings dropping.