By John Irish and Tiemoko Diallo PARIS/BAMAKO (Reuters) -France and military allies said on Thursday they would leave Mali after almost a decade based there fighting Islamist insurgents around West Africa, moving instead to Niger despite public disenchantment with Paris’ role in the region. Coups in Mali, Chad and Burkina Faso have weakened France’s alliances in its former colonies, emboldened jihadists who control large swathes of desert and scrubland, and opened the door to greater Russian influence. Diplomats fear the exit of 2,400 French troops from Mali – the epicentre of violence in the …