Convert a landsat convert test to local

[gadomski]

The remote url disappeared, and having a remote test when you don't need one is flakey anyways.

Seems squirrely that it disappeared right as we did a release but 🤷🏽 .

[codecov-commenter]

Codecov Report

Merging #105 (aeb40fb) into master (7956b4d) will not change coverage.
The diff coverage is 0.00%.

@@           Coverage Diff           @@
##           master     #105   +/-   ##
=======================================
  Coverage   85.31%   85.31%           
=======================================
  Files          81       81           
  Lines        2417     2417           
=======================================
  Hits         2062     2062           
  Misses        355      355           

Impacted Files	Coverage Δ
stactools_aster/stactools/aster/version.py	0.00% <0.00%> (ø)
stactools_browse/stactools/browse/version.py	0.00% <0.00%> (ø)
...actools_cgls_lc100/stactools/cgls_lc100/version.py	0.00% <0.00%> (ø)
stactools_cli/stactools/cli/version.py	0.00% <0.00%> (ø)
stactools_core/stactools/core/version.py	0.00% <0.00%> (ø)
stactools_corine/stactools/corine/version.py	0.00% <0.00%> (ø)
stactools_landsat/stactools/landsat/version.py	0.00% <0.00%> (ø)
stactools_naip/stactools/naip/version.py	0.00% <0.00%> (ø)
stactools_planet/stactools/planet/version.py	0.00% <0.00%> (ø)
stactools_sentinel2/stactools/sentinel2/version.py	0.00% <0.00%> (ø)
... and 1 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 90b8bb7...aeb40fb. Read the comment docs.