Remove obsolete sass README.

assets/sass/README.txt

@@ -1,88 +0,0 @@
-ZEN'S STYLESHEETS
------------------
-
-Don't panic!
-
-There are a lot of files in this Sass folder. A lot. 56, actually.
-
-I swear to you I'm going to give you a good reason not to panic. Just give me
-a minute. (ヘ･_･)ヘ┳━┳
-
-Okay, how about just panicking slightly while I collect my thoughts.
-(╯°□°）╯︵ ┻━┻
-
-Okay. Okay. There _are_ 56 Sass files in this sub-theme, but it's not as bad as
-it first seems.
-
-Why not just one stylesheet?
-
-- For performance reasons you should always have all of your CSS in a single
-  file to minimize the number of HTTP requests the user's browser needs to do.
-  Fortunately, Drupal has a "Aggregate and compress CSS" feature that will
-  automatically combine all the CSS files from its modules and themes into one
-  file. You can turn on that feature under "Bandwidth Optimization" on the page:
-    Administration > Configuration > Development > Performance
-  So Drupal allows us (if we want) to use more than one stylesheet file, but
-  still serves all the styles in one file to our users.
-
-- When developing a site using a single stylesheet, it can become unwieldy to
-  scroll and find the place you need to edit. As a deadline becomes imminent,
-  developers often start stuffing new styles at the bottom of the stylesheet,
-  completely destroying any stylesheet organization.
-
-- Instead of one monolithic stylesheet, Zen sub-themes' CSS files are organized
-  into many small stylesheets. Once you learn the organization (described
-  below) it becomes easier to find the right place to add new styles.
-
-- All the Sass files are imported into the styles.scss so all the CSS is output
-  to the styles.css file.
-
-ORGANIZATION OF STYLESHEETS
----------------------------
-
-All of the styles in this sub-theme are built using component-based designs. To
-learn more about component-based design, watch the Drupalcon presentation,
-"Style Guide Driven Development: All hail the robot overlords!"
-https://events.drupal.org/losangeles2015/sessions/style-guide-driven-development-all-hail-robot-overlords
-
-The Sass files are organized in a simple file hierarchy, and, best of all are
-documented in a style guide which is super easy to keep up-to-date. Open the
-style guide to learn more about the styles and Sass used in this sub-theme.
-
-Open the styleguide/index.html file in a web browser.
-
-
-ABOUT SASS
-----------
-
-This directory includes Sass versions of Zen's CSS files.
-
-Sass is a language that is just normal CSS plus some extra features, like
-variables, nested rules, math, mixins, etc. If your stylesheets are written in
-Sass, helper applications can convert them to standard CSS so that you can
-include the CSS in the normal ways with your theme.
-
-To learn more about Sass, visit: http://sass-lang.com
-
-Since Sass is just a language, we also need an executable that can easily
-convert Sass files into CSS. We use node-sass to convert our files to CSS. And
-we use Gulp.js to run node-sass and many other useful front-end tasks.
-
-
-DEVELOPING WITH SASS
---------------------
-
-To automatically generate the CSS versions of the scss while you are doing theme
-development, you'll need to tell Gulp to "watch" the sass directory so that
-any time a .scss file is changed it will automatically generate a CSS file in
-your sub-theme's css directory:
-
-  gulp watch
-
-
-MOVING YOUR CSS TO PRODUCTION
------------------------------
-
-Simple! Generate your CSS with: gulp
-
-And don't forget to turn on Drupal's CSS aggregation. :-)