Remove RHEL 7 from installation instructions

AUTHORS

@@ -21,6 +21,7 @@ Andres Ivanov <[email protected]>
 Andrew Jaffie <[email protected]>
 Andrew Meyer <[email protected]>
 Andy Grunwald <[email protected]>
+Angel Roman <[email protected]>
 Ant1x <[email protected]>
 Arnd Hannemann <[email protected]>
 Assaf Flatto <[email protected]>

doc/02-installation.md

@@ -100,16 +100,8 @@ subscription-manager repos --enable "codeready-builder-for-rhel-${OSVER}-${ARCH}
 dnf install https://dl.fedoraproject.org/pub/epel/epel-release-latest-${OSVER}.noarch.rpm
 ```
 
-#### RHEL 7
-
-```bash
-subscription-manager repos --enable rhel-7-server-optional-rpms
-
-yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
-```
 <!-- {% endif %} -->
 
-
 <!-- {% if fedora %} -->
 ### Fedora Repository <a id="fedora-repository"></a>
 
@@ -214,14 +206,6 @@ dnf install icinga2
 systemctl enable icinga2
 systemctl start icinga2
 ```
-
-#### RHEL 7
-
-```bash
-yum install icinga2
-systemctl enable icinga2
-systemctl start icinga2
-```
 <!-- {% endif %} -->
 
 <!-- {% if fedora %} -->
@@ -314,12 +298,6 @@ The packages for RHEL depend on other packages which are distributed as part of
 ```bash
 dnf install nagios-plugins-all
 ```
-
-#### RHEL 7
-
-```bash
-yum install nagios-plugins-all
-```
 <!-- {% endif %} -->
 
 <!-- {% if fedora %} -->
@@ -457,12 +435,6 @@ apt install icingadb-redis
 ```bash
 dnf install icingadb-redis
 ```
-
-##### RHEL 7
-
-```bash
-yum install icingadb-redis
-```
 <!-- {% endif %} -->
 
 <!-- {% if sles %} -->