LONDON/HONG KONG (REUTERS) - HSBC has cut a number of top management roles in its investment bank, memos seen by Reuters showed, a sign that chief executive Noel Quinn is pressing on with plans to shake up the group despite having put a wider job cut programme on hold. CEO Quinn last month announced a temporary halt to plans for 35,000 redundancies across the bank because of the impact of the coronavirus pandemic. Quinn, who took on the permanent CEO role in March after a lengthy audition process during which Chairman Mark Tucker courted several external can...