nixpkgs: remove tsocks

tsocks is old, and users should be using torsocks these days instead.

Signed-off-by: Austin Seipp <aseipp@pobox.com>

pkgs/development/libraries/tsocks/poll.patch

@@ -1,26 +0,0 @@
-From Ingo Hadan <ingo.hadan@sdm.de> Fri, 02 Apr 2010 21:08:50 +0200
-From: Julien Moutinho <julm+tsocks@autogeree.net>
-Date: Fri, 26 Apr 2013 01:57:26 +0200
-Subject: tsocks fails if socksified application uses poll(2) (e.g. subversion-1.5)
-
----
-diff --git a/tsocks.c b/tsocks.c
-index 9cfdfff..470babd 100644
---- a/tsocks.c
-+++ b/tsocks.c
-@@ -657,10 +657,11 @@ int poll(POLL_SIGNATURE) {
-              * be ready for writing), otherwise we'll just let the select loop
-              * come around again (since we can't flag it for read, we don't know
-              * if there is any data to be read and can't be bothered checking) */
--            if (conn->selectevents & WRITE) {
--               setevents |= POLLOUT; 
-+            if (conn->selectevents & POLLOUT) {
-+               ufds[i].revents |= POLLOUT; 
-                nevents++;
-             }
-+            ufds[i].events = conn->selectevents;
-          }
-       }
-    } while (nevents == 0);
-
-