Generalize output 'script.css' artifact ignores

.gitignore

@@ -167,16 +167,14 @@ packages/*/*.egg-info
 config/plugins/**/static/dist
 config/plugins/**/static/script.js
 config/plugins/**/static/main.css
+config/plugins/**/static/script.css
 config/plugins/**/static/plugin_build_hash.txt
 config/plugins/**/static/*.map
 
 # Viz-specific build artifacts to ignore (until these are removed from codebase)
 config/plugins/visualizations/annotate_image/static/jquery.contextMenu.css
 config/plugins/visualizations/nvd3/nvd3_bar/static/nvd3.js
-config/plugins/visualizations/h5web/static/script.css
-config/plugins/visualizations/tiffviewer/static/script.css
 config/plugins/visualizations/scatterplot/static/scatterplot.js
-config/plugins/visualizations/jqplot/jqplot_bar/static/script.css
 
 # CWL conformance tests
 lib/galaxy_test/api/cwl/test_cwl_conformance_v1_?.py