branch wip-http-pipelining deleted (was efc571a)

[Ludovic Courtès]

civodul pushed a change to branch wip-http-pipelining
in repository guix.

       was  efc571a   substitute-binary: Remove thread-safe 'regexp-exec' 
wrapper.

This change permanently discards the following revisions:

  discards  efc571a   substitute-binary: Remove thread-safe 'regexp-exec' 
wrapper.
  discards  f2ae46d   substitute-binary: Pipeline HTTP requests instead of 
using threads.
  discards  fe2947e   substitute-binary: Allow callers to specify the size of a 
narinfo.
  discards  3328abc   daemon: Flush upon '\r' when reading the substituter's 
stderr.