By Laura McGuire Diageo is continuing to feel the fall out from last year’s profit warning and a weakening demand for premium spirits, as analysts slashed expectations for the Guinness maker. The FTSE 100 firm, which also makes Smirnoff vodka and Captain Morgan rum, has around £12bn wiped off its market cap value over the past five months amid a slowdown in trade. This morning, analysts at Deutsche Bank agreed to reduce their estimates for the alcohol giant’s first half results for 2024, set to be published at the end of the month. Organic sales are now forecast at -5.5 per cent, down from a p…