EPAppServiceImpl class fix.

Sonar issues fix:
Remove this unused "logger" private field.
Remove this unused "syncRests" private field.

unused imports delete and unneeded fields initialization fix.
StringBuilder performance fix.

Issue-ID: PORTAL-620
Change-Id: Ibd1cf732b216594b47801767d0a98e59b0aba200
Signed-off-by: Dominik Mizyn <d.mizyn@samsung.com>
1 file changed