fix: remove scenario dropdown from FinanzplanSlide

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

pitch-deck/components/slides/FinanzplanSlide.tsx

@@ -193,17 +193,6 @@ export default function FinanzplanSlide({ lang, investorId, preferredScenarioId
           </button>
         ))}
         <div className="flex-1" />
-        {scenarios.length > 1 && (
-          <select
-            value={selectedScenarioId}
-            onChange={e => setSelectedScenarioId(e.target.value)}
-            className="text-[10px] bg-white/[0.06] text-white/60 border border-white/10 rounded-lg px-2 py-1.5 mr-2"
-          >
-            {scenarios.map(s => (
-              <option key={s.id} value={s.id}>{s.name}{s.is_default ? ' ★' : ''}</option>
-            ))}
-          </select>
-        )}
         <button
           onClick={handleCompute}
           disabled={computing}