Revert "PIPE: Add pipe support for passing data into and out of terminal commands (#2395)" (#2524)

This reverts commit 92b8b58588.

Accidental merge on my part - the code is in decent shape, but isn't meant to go in for 3.0.

src/Documentation/doc/en/index.md

@@ -28,9 +28,6 @@
 ## Advanced Mechanics
 
 - [Hacking algorithms](programming/hackingalgorithms.md)
-- [IPvGO](programming/go_algorithms.md)
-- [Darkweb Network](programming/darknet.md)
-- [Terminal Pipes and Redirects](programming/terminal_pipes_and_redirects.md)
 - [List of factions and their requirements](advanced/faction_list.md)
 - [Offline scripts and bonus time](advanced/offlineandbonustime.md)
 - [BitNodes](advanced/bitnodes.md)
@@ -45,6 +42,8 @@
 - [Sleeves](advanced/sleeves.md)
 - [Grafting](advanced/grafting.md)
 - [Stanek's Gift](advanced/stanek.md)
+- [IPvGO](programming/go_algorithms.md)
+- [Darkweb Network](programming/darknet.md)
 
 ## Resources