Fix parameters that are passed by default for the dnf5 command

[jan-kolarik]

We should discuss which parameters should be automatically passed with the dnf5 command when running scenarios. Lot of parameters are now passed and overridden from the CLI. This can have a negative impact on the default user use cases that are not covered by this behavior.

Below is the description of the issue discussed on the team meeting:

There are different methods to prepare the dnf4 and dnf5 commands - “get_dnf5_cmd” and “get_dnf4_cmd”.

Differences in dnf5:

Removed:
disable_plugins = self._get("disable_plugins")
if disable_plugins:
result.append("--disableplugin='*'")

Added:
result.append("--setopt=reposdir=%s" % self.installroot + "/etc/yum.repos.d")
result.append("--setopt=config_file_path=%s" % self.installroot + "/etc/dnf/dnf.conf")
result.append("--setopt=cachedir=%s" % self.installroot + "/var/cache/dnf")

Do we want these differences? Using “–setopt=config_file_path” is problematic (discussion in #1429). Moreover, unnecessary. Because the config files are taken from installroot by default. The same applies to “--setopt=reposdir”. Without “--setopt=cachedir” 8 tests failed. But that might be a bug in dnf5.

PR #1467 thats removes “--setopt=reposdir” and “--setopt=config_file_path”