Remove ci-test-full recipe and simplify comments

This removes the `ci-test-full` justfile target (see #1674), and
simplifies and shortens some comments in the justfile, since the
distinction between `ci-test` and `ci-test-full` no longer has to
be explained, and since some other parts of the comments are no
longer applicable (#1673).

Author: EliahKagan

justfile

@@ -12,15 +12,10 @@ alias nt := nextest
 # run all tests, clippy, including journey tests, try building docs
 test: clippy check doc unit-tests journey-tests-pure journey-tests-small journey-tests-async journey-tests
 
-# run all tests, without clippy, including journey tests, try building docs (and clear target)
-ci-test-full: check doc unit-tests clear-target ci-journey-tests
-
-# run all tests, without clippy, and try building docs (without clearing the target)
+# run all tests, without clippy, and try building docs
 ci-test: check doc unit-tests
 
-# run all journey tests
-# these should be run in a fresh clone or after `cargo clean`
-# (and workaround a just-issue of deduplicating targets)
+# run all journey tests - should be run in a fresh clone or after `cargo clean`
 ci-journey-tests: journey-tests-pure journey-tests-small journey-tests-async journey-tests
 
 clear-target: