fix wrong mismatch of type modifiers

Change-Id: I204b2ad15958a3782c27cc20f07f37b917eae02f
Reviewed-on: https://gerrit.libreoffice.org/52598Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Markus Mohrhard <markus.mohrhard@googlemail.com>

accessibility/source/standard/vclxaccessiblebox.cxx

@@ -263,7 +263,7 @@ Reference< XAccessibleContext > SAL_CALL VCLXAccessibleBox::getAccessibleContext
 
 //=====  XAccessibleContext  ==================================================
 
-sal_Int32 SAL_CALL VCLXAccessibleBox::getAccessibleChildCount()
+sal_Int32 VCLXAccessibleBox::getAccessibleChildCount()
 {
     SolarMutexGuard aSolarGuard;
     ::osl::Guard< ::osl::Mutex > aGuard( GetMutex() );