DEV: Remove selenium and rust (#1005)

We no longer use selenium, and rust was only required to build it.

Author: CvX

.gitignore

@@ -13,7 +13,6 @@ image/squash.tar
 image/nsenter/nsenter
 image/docker-squash
 image/docker-squash.tar.gz
-image/discourse_dev/install-rust
 image/discourse_dev/postgres.template.yml
 image/discourse_dev/redis.template.yml
 .gc-state/*

image/auto_build.rb

@@ -159,7 +159,6 @@ def dev_deps()
     "sed -e 's/\(db_name: discourse\)/\1_development/' ../templates/postgres.template.yml > discourse_dev/postgres.template.yml",
   )
   run("cp ../templates/redis.template.yml discourse_dev/redis.template.yml")
-  run("cp base/install-rust discourse_dev/install-rust")
 end
 
 if ARGV.length == 0

image/base/install-rust

@@ -37,10 +37,7 @@ RUN /pups/bin/pups /pups/redis.yml
 RUN locale-gen en_US.UTF-8
 ENV LANG=en_US.UTF-8 \
     LANGUAGE=en_US:en \
-    LC_ALL=en_US.UTF-8 \
-    RUSTUP_HOME=/usr/local/rustup \
-    CARGO_HOME=/usr/local/cargo \
-    PATH=/usr/local/cargo/bin:$PATH
+    LC_ALL=en_US.UTF-8
 
 # get postgres going
 ADD postgres.template.yml /pups/postgres.yml
@@ -57,10 +54,6 @@ RUN mv /shared/postgres_data /shared/postgres_data_orig
 # invocations when used with a mounted volume)
 ADD ensure-database /etc/runit/1.d/ensure-database
 
-ADD install-rust /tmp/install-rust
-ADD install-selenium /tmp/install-selenium
-RUN /tmp/install-selenium
-
 # Install & Configure MailHog (https://github.com/mailhog/MailHog)
 RUN wget -qO /tmp/mailhog https://github.com/mailhog/MailHog/releases/download/v1.0.1/MailHog_linux_amd64\
     && echo "e2ed634ded49929f089b20045581955ed217672078fd86082dd7a6c67c5d09c7 /tmp/mailhog" | sha256sum -c -\