No longer install rust on the jenkins-worker machines. (#130)

## Summary:
fastly-ka-dev is gone, we don't need to run rust code anymore!

Issue: none

## Test plan:
none

Subscribers: @MiguelCastillo

Author: csilvers

Reviewers: kevinb-khan

Required Reviewers:

Approved By: kevinb-khan

Checks:

Pull Request URL: #130

bin/system_report.sh

@@ -109,9 +109,6 @@ header "Go"
 tool_version go version
 kv_multiline "Go ENV" "$(go env)"
 
-header "Rust"
-tool_version cargo --version
-
 # This is multi-line, but it's still pretty readable. Good enough for now.
 header "Fastly"
 tool_version fastly version

containers/kabuild/Dockerfile

@@ -128,9 +128,4 @@ RUN cat bashrc.default .bashrc > .bashrc.new
 RUN mv .bashrc.new .bashrc
 RUN rm -f bashrc.default
 
-RUN mkdir -p /tmp/rust
-RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs --output /tmp/rust/rustup-init.sh
-RUN bash /tmp/rust/rustup-init.sh -y --profile default --no-modify-path
-RUN rm -rf /tmp/rust
-
 CMD tail -f /dev/null

linux-setup.sh

@@ -301,19 +301,6 @@ install_postgresql() {
     sudo service postgresql restart
 }
 
-install_rust() {
-    builddir=$(mktemp -d -t rustup.XXXXX)
-
-    (
-        cd "$builddir"
-        curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs --output rustup-init.sh
-        bash rustup-init.sh -y --profile default --no-modify-path
-    )
-
-    # cleanup temporary build directory
-    sudo rm -rf "$builddir"
-}
-
 install_fastly() {
     builddir=$(mktemp -d -t fastly.XXXXX)
 
@@ -370,7 +357,6 @@ install_watchman
 setup_clock
 config_inotify
 install_postgresql
-install_rust
 install_fastly
 # TODO (boris): Setup pyenv (see mac_setup:install_python_tools)
 # https://opencafe.readthedocs.io/en/latest/getting_started/pyenv/

mac-setup-normal.sh

@@ -373,7 +373,6 @@ update_git
 install_node
 install_go
 
-"$DEVTOOLS_DIR"/khan-dotfiles/bin/install-mac-rust.py
 "$DEVTOOLS_DIR"/khan-dotfiles/bin/mac-setup-postgres.py
 
 install_redis