This reverts commit
a757c4a24f110aa25ad36dd347d499cf859e4d0d.
While it is true that Grack memory use while sending data to a client
was improved, this does not change the fact that the Git processes
running on a GitLab server will use more memory for large repositories.
- 512MB is too little memory, GitLab will be very slow and you will need 250MB of swap
- 768MB is the minimal memory size but we advise against this
-- 1GB supports up to 100 users
+- 1GB supports up to 100 users if you do not have individual repo's over 250MB
- **2GB** is the **recommended** memory size and supports up to 1,000 users
- 4GB supports up to 10,000 users