Revert "TMT: additional prepare steps for consistency"

This reverts commit ccf5a14.

Signed-off-by: Lokesh Mandvekar <[email protected]>

Author: lsm5

plans/main.fmf

@@ -19,14 +19,6 @@ prepare:
         # We don't want the podman-next rpm to override the one from the PR copr build
         dnf -y upgrade --allowerasing --exclude=container-selinux
       order: 20
-    - name: Disable installing everything from srpm
-      how: install
-      exclude:
-        - ".*"
-    - name: Install the main package
-      how: install
-      package:
-        - container-selinux
 
 /basic_check:
     discover+: