dev env: Stop installing tuf as "editable"

This was likely only necessary because the test suite required it:
Now tuf does not get installed at all by tox (or by dev install)

Signed-off-by: Jussi Kukkonen <jkukkonen@google.com>

.github/workflows/specification-version-check.yml

@@ -20,7 +20,6 @@ jobs:
           python-version: "3.x"
       - id: get-version
         run: |
-          python3 -m pip install -e .
           script="from tuf.api.metadata import SPECIFICATION_VERSION; \
                   print(f\"v{'.'.join(SPECIFICATION_VERSION)}\")"
           ver=$(python3 -c "$script")

requirements/dev.txt

@@ -1,8 +1,3 @@
-# Install tuf in editable mode and requirements for local testing with tox,
-# and also for running test suite or individual tests manually.
-# The build and tox versions specified here are also used as constraints
-# during CI and CD Github workflows
 -r build.txt
 -r test.txt
 -r lint.txt
--e .

tox.ini

@@ -16,9 +16,6 @@ commands =
 
 deps =
     -r{toxinidir}/requirements/test.txt
-    # Install TUF in editable mode, instead of tox default virtual environment
-    # installation (see `skipsdist`), to get relative paths in coverage reports
-    --editable {toxinidir}
 
 install_command = python3 -m pip install {opts} {packages}
 
@@ -38,7 +35,6 @@ commands =
 [testenv:lint]
 deps =
     -r{toxinidir}/requirements/lint.txt
-    --editable {toxinidir}
 lint_dirs = tuf examples tests verify_release .github/scripts
 passenv = RUFF_OUTPUT_FORMAT
 commands =