Remove old '#if 0' remarked code

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@4864 43c1dc8c-776e-4df2-8ef1-6e829299be21
Use d->lineButtons to traverse linedevices, in lookup functions

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@4865 43c1dc8c-776e-4df2-8ef1-6e829299be21