agent: Don't reset environment when not starting a session.
agent: Don't reset environment when not starting a session.

This makes debugging easier since otherwise cockpit-agent would always
start a new session bus.

Closes #682

Signed-off-by: Stef Walter <8a7fbf0f15d3ad982af54ef28f5c117d2494b76c@redhat.com>
 - Removed unnecessary static initialization

mareklibra/cockpit,garrett/cockpit,evol262/cockpit,evol262/cockpit,harishanand95/cockpit,cockpit-project/cockpit,xhad/cockpit,Armstrong1992/cockpit,Armstrong1992/cockpit,nmav/cockpit,Thermionix/cockpit,petervo/cockpit,arilivigni/cockpit,nmav/cockpit,mareklibra/cockpit,mvollmer/cockpit,evol262/cockpit,matobet/cockpit,mareklibra/cockpit,harishanand95/cockpit,denysvitali/cockpit,nmav/cockpit,cockpituous/cockpit,xhad/cockpit,SotolitoLabs/cockpit,jscotka/cockpit,arilivigni/cockpit,moolitayer/cockpit,zigitax/cockpit,michalskrivanek/cockpit,Scribery/cockpit,michalskrivanek/cockpit,arilivigni/cockpit,deryni/cockpit,garrett/cockpit,stefwalter/cockpit,Thermionix/cockpit,petervo/cockpit,moraleslazaro/cockpit,cockpit-project/cockpit,arilivigni/cockpit,SotolitoLabs/cockpit,haiyangd/cockpit_view,maxamillion/cockpit,vbatts/cockpit,SotolitoLabs/cockpit,kkaempf/cockpit,garrett/cockpit,vanloswang/cockpit,andreasn/cockpit,evol262/cockpit,petervo/cockpit,denysvitali/cockpit,FireDrunk/cockpit,vanloswang/cockpit,larsu/cockpit,netzvieh/cockpit,larsu/cockpit,FireDrunk/cockpit,mareklibra/cockpit,dperpeet/cockpit,petervo/cockpit,Thermionix/cockpit,matobet/cockpit,firebitsbr/cockpit,deryni/cockpit,vanloswang/cockpit,vbatts/cockpit,Scribery/cockpit,deryni/cockpit,netzvieh/cockpit,harishanand95/cockpit,xhad/cockpit,moraleslazaro/cockpit,andreasn/cockpit,FireDrunk/cockpit,sgallagher/cockpit,sgallagher/cockpit,FireDrunk/cockpit,jscotka/cockpit,cockpituous/cockpit,vbatts/cockpit,larskarlitski/cockpit,larskarlitski/cockpit,stefwalter/cockpit,denysvitali/cockpit,andreasn/cockpit,vanloswang/cockpit,maxamillion/cockpit,maxamillion/cockpit,kkaempf/cockpit,Scribery/cockpit,matobet/cockpit,dperpeet/cockpit,netzvieh/cockpit,SotolitoLabs/cockpit,matobet/cockpit,dperpeet/cockpit,fridex/cockpit,darioajr/cockpit,jscotka/cockpit,firebitsbr/cockpit,evol262/cockpit,larskarlitski/cockpit,harishanand95/cockpit,SotolitoLabs/cockpit,Thermionix/cockpit,evol262/cockpit,dperpeet/cockpit,sub-mod/cockpit,vanloswang/cockpit,mvollmer/cockpit,stefwalter/cockpit,Scribery/cockpit,haiyangd/cockpit_view,larskarlitski/cockpit,Scribery/cockpit,moraleslazaro/cockpit,larsu/cockpit,darioajr/cockpit,netzvieh/cockpit,SotolitoLabs/cockpit,sgallagher/cockpit,zigitax/cockpit,fridex/cockpit,deryni/cockpit,vanloswang/cockpit,arilivigni/cockpit,firebitsbr/cockpit,sgallagher/cockpit,harishanand95/cockpit,xhad/cockpit,xhad/cockpit,michalskrivanek/cockpit,matobet/cockpit,netzvieh/cockpit,cockpituous/cockpit,petervo/cockpit,sub-mod/cockpit,cockpit-project/cockpit,netzvieh/cockpit,matobet/cockpit,stefwalter/cockpit,fridex/cockpit,larsu/cockpit,mvollmer/cockpit,xhad/cockpit,cockpit-project/cockpit,vanloswang/cockpit,michalskrivanek/cockpit,moraleslazaro/cockpit,Armstrong1992/cockpit,jscotka/cockpit,darioajr/cockpit,mareklibra/cockpit,larsu/cockpit,darioajr/cockpit,firebitsbr/cockpit,haiyangd/cockpit_view,zigitax/cockpit,dperpeet/cockpit,andreasn/cockpit,moolitayer/cockpit,deryni/cockpit,maxamillion/cockpit,SotolitoLabs/cockpit,garrett/cockpit,sgallagher/cockpit,nmav/cockpit,vbatts/cockpit,moraleslazaro/cockpit,sub-mod/cockpit,nmav/cockpit,cockpit-project/cockpit,moolitayer/cockpit,kkaempf/cockpit,mvollmer/cockpit,martinpitt/cockpit,martinpitt/cockpit,larskarlitski/cockpit,cockpituous/cockpit,moraleslazaro/cockpit,martinpitt/cockpit,zigitax/cockpit,harishanand95/cockpit,zigitax/cockpit,moolitayer/cockpit,xhad/cockpit,cockpituous/cockpit,sgallagher/cockpit,Scribery/cockpit,fridex/cockpit,martinpitt/cockpit,larskarlitski/cockpit,Armstrong1992/cockpit,andreasn/cockpit,deryni/cockpit,michalskrivanek/cockpit,darioajr/cockpit,Thermionix/cockpit,sgallagher/cockpit,stefwalter/cockpit,garrett/cockpit,larskarlitski/cockpit,deryni/cockpit,FireDrunk/cockpit,denysvitali/cockpit,harishanand95/cockpit,Scribery/cockpit,moolitayer/cockpit,moraleslazaro/cockpit,petervo/cockpit,martinpitt/cockpit,sub-mod/cockpit,jscotka/cockpit,petervo/cockpit,stefwalter/cockpit,Armstrong1992/cockpit,fridex/cockpit,dperpeet/cockpit,mareklibra/cockpit,vbatts/cockpit,kkaempf/cockpit,sub-mod/cockpit,haiyangd/cockpit_view,cockpituous/cockpit,jscotka/cockpit,denysvitali/cockpit,stefwalter/cockpit,michalskrivanek/cockpit,maxamillion/cockpit,firebitsbr/cockpit,arilivigni/cockpit,andreasn/cockpit,mareklibra/cockpit,michalskrivanek/cockpit,mvollmer/cockpit,vbatts/cockpit,Thermionix/cockpit,arilivigni/cockpit,haiyangd/cockpit_view,larsu/cockpit,fridex/cockpit,andreasn/cockpit,kkaempf/cockpit,dperpeet/cockpit