Remove 'Working with ... code' sections from README.md

Text moved to documentation/developer_manual/core/ and
updated with newer development flow.

Signed-off-by: Private Maker <privatemaker@posteo.net>

README.md

@@ -57,80 +57,6 @@ Several apps that are included by default in regular releases such as [First run
 
 Otherwise, git checkouts can be handled the same as release archives, by using the `stable*` branches. Note they should never be used on production systems.
 
-### Working with front-end code 🏗
-
-#### Building Vue components and scripts
-
-We are moving more and more toward using Vue.js in the front-end, starting with Settings. For building the code on changes, use these terminal commands in the root folder:
-
-```bash
-# install dependencies
-make dev-setup
-
-# build for development
-make build-js
-
-# build for development and watch edits
-make watch-js
-
-# build for production with minification
-make build-js-production
-```
-
-#### Building styles
-
-Styles are written in SCSS and compiled to css.
-
-```bash
-# install dependencies
-make dev-setup
-
-# compile style sheets
-npm run sass
-
-# compile style sheets and watch edits
-npm run sass:watch
-```
-
-#### Committing changes
-
-**When making changes, also commit the compiled files!**
-
-We still use Handlebars templates in some places in Files and Settings. We will replace these step-by-step with Vue.js, but in the meantime, you need to compile them separately.
-
-If you don’t have Handlebars installed yet, you can do it with this terminal command:
-```bash
-sudo npm install -g handlebars
-```
-
-Then inside the root folder of your local Nextcloud development installation, run this command in the terminal every time you changed a `.handlebars` file to compile it:
-```bash
-./build/compile-handlebars-templates.sh
-```
-
-Before checking in JS changes, make sure to also build for production:
-```bash
-make build-js-production
-```
-Then add the compiled files for committing.
-
-To save some time, to only rebuild for a specific app, use the following and replace the module with the app name:
-```bash
-MODULE=user_status make build-js-production
-```
-
-Please note that if you used `make build-js` or `make watch-js` before, you'll notice that a lot of files were marked as changed, so might need to clear the workspace first.
-
-### Working with back-end code 🏗
-
-When changing back-end PHP code, in general, no additional steps are needed before checking in.
-
-However, if new files were created, you will need to run the following command to update the autoloader files:
-```bash
-build/autoloaderchecker.sh
-```
-
-After that, please also include the autoloader file changes in your commits.
 
 ### Tools we use 🛠