Remove ability to deploy custom programs (#7070)

automerge

scripts/cargo-install-custom-programs.sh

@@ -1,21 +0,0 @@
-#!/usr/bin/env bash
-#
-# This script will install all cargo workspace libraries found in
-# `programDir` as native programs.
-set -e
-
-# Directory to install libraries into
-installDir="$(mkdir -p "$1"; cd "$1"; pwd)"
-
-# Where to find custom programs
-programDir="$2"
-
-(
-  set -x
-  cd "$programDir"
-  cargo build --release
-)
-
-set -x
-mkdir -p "$installDir/bin/deps"
-cp -fv "$programDir"/target/release/deps/libsolana*program.* "$installDir/bin/deps"