worker dependencies

Build-and-Deployment.md

@@ -50,34 +50,6 @@ Install as new version of each package as possible, so mostly Debian packages ar
 - Debian package is `libcurl4-gnutls-dev`.
 - RedHat package is `libcurl-devel`.
 
-### Worker specific dependencies
-
-Worker requirements are written in this section. Some parts of this guide may be different for each type of worker, for example Compiler principles worker is not fully covered here.
-
-**Install libarchive library** (optional)
-
-Installing this package will only speed up build process, otherwise libarchive is built from source.
-- Debian package is `libarchive-dev`.
-- RedHat packages are `libarchive` and `libarchive-devel`. These are probably not available for RHEL.
-
-**Install Isolate from source**
-
-First, we need to compile sandbox Isolate from source and install. Assume that we keep source code in `/opt/src` dir. For building man page you need to have package `asciidoc` installed.
-```
-$ cd /opt/src
-$ git clone https://github.com/ioi/isolate.git
-$ cd isolate
-$ make
-# make install && make install-doc
-```
-For proper work Isolate depends on several advanced features of the Linux kernel. Make sure that your kernel is compiled with `CONFIG_PID_NS`, `CONFIG_IPC_NS`, `CONFIG_NET_NS`, `CONFIG_CPUSETS`, `CONFIG_CGROUP_CPUACCT`, `CONFIG_MEMCG`. If your machine has swap enabled, also check `CONFIG_MEMCG_SWAP`. Which flags was your kernel compiled with can be found in `/boot` directory, for example in `/boot/config-4.2.6-301.fc23.x86_64` file for kernel version 4.2.6-301. Red Hat distros should have these enabled by default, for Debian you you may want to add the parameters `cgroup_enable=memory swapaccount=1` to the kernel command-line, which can be set using `GRUB_CMDLINE_LINUX_DEFAULT` in `/etc/default/grub`.
-
-For better reproducibility of results, some kernel parameters can be tweaked:
-- Disable address space randomization. Create file `/etc/sysctl.d/10-recodex.conf` with content `kernel.randomize_va_space=0`. Changes will take effect after restart or run `sysctl kernel.randomize_va_space=0` command.
-- Disable dynamic CPU frequency scaling. This requires setting the cpufreq scaling governor to _performance_.
-_**TODO** - do we really need it and is it worth higher power consumption? [Red Hat setup](https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Power_Management_Guide/cpufreq_governors.html), [Debian setup](https://wiki.debian.org/HowTo/CpuFrequencyScaling)_
-
-
 ## Worker and Broker
 
 ### Clone ReCodEx source code repositories