Remove/fix some dead code

All of this was found via warnings ("remarks") from icc.


git-svn-id: https://znc.svn.sourceforge.net/svnroot/znc/trunk@1435 726aef4b-f618-498e-8847-2d620e286838

FileUtils.cpp

@@ -100,7 +100,7 @@ bool CFile::FType(const CString sFileName, EFileTypes eType, bool bUseLstat) {
 		case FT_SOCK:
 			return S_ISSOCK(st.st_mode);
 		default:
-			return false;
+			break;
 	}
 	return false;
 }