We haven't used ash for several releases. Remove ash and its
companion liblinenoise.
I've left the support for an alternative shell here for now,
but we can move that out to external/mksh later if we want.
(For now this seemed like a somewhat useful signpost to the real shell.)
Change-Id: I634c7969f6cbe375a2bc56fc1077e64888380f3d
The linenoise library is from http://github.com/antirez/linenoise
This patch also disables command-line editing and history from adb. The
adb implementation was shadowing the Android shell's implementation.
The adb implementation was also shadowing the editing and history
implementation in alternative shells such as BusyBox's ash.
Change-Id: I7ebd4cb391d0ce966c0ce0e707d80ecd659f9079
Elliott Hughes