(\parsetpheaderline): Don't go through \tptemp when removing braces from #2, use the macro call directly.

(\parsetpheaderline): Don't go through \tptemp when
	removing braces from #2, use the macro call directly.
	(\removeemptybraces): Expand to #1 instead of defining \tptemp.
	From: Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>.
	This makes @deftp {Data type} {struct termios} work again.

From-SVN: r13180