remove unnecessary sal_Unicode casts in SC module

Change-Id: Iee7688ea60b4d45d3e6725afd46e9cbb5ebe26c5
remove unnecessary sal_Unicode casts in UCB module

Change-Id: Ib93120ec0cae76b5ea19f723054363771b27ab56
remove unnecessary sal_Unicode casts in VCL module

Change-Id: I79da72097e8bc86891075d1484a59b5599a063d0
remove unnecessary sal_Unicode casts in SW module

Change-Id: I9e67d4f5e680a29718c4e7be7292913602cd9311
remove unnecessary sal_Unicode casts in DBACCESS module

Change-Id: I4c4ab5d672e994b1e8e3beac027d3f4e8f700714
remove unnecessary sal_Unicode casts in OOX module

Change-Id: I2b9f26cb500a9e56f5860bd1b483ed284b84f50d
remove unnecessary sal_Unicode casts in SVGIO module

Change-Id: Ie463f500bd8c5af37e99fb9e1a8d1fd5b2cd0766
remove unnecessary sal_Unicode casts in SVX module

Change-Id: I5d39af3bda3f1197fd1d706e7ef8d28b58d4851a
remove unnecessary sal_Unicode casts in various places

Change-Id: Ibf04062ca86ed866202d748c3b62a210d30ed6ec