Further Maths is not a pre-requisite for the majority of undergraduate mathematics degrees but a distinction should be made about the type of mathematics degree you wish to pursue. For example, some universities show a clear distinction between applied and pure mathematics, whereas some just state mathematics, and the mathematics taught is of a more pure or applied nature. In this instance, having Further Pure can be beneficial for a pure mathematics course, though most first year of undergrad mathematics courses recap a-level maths and further pure at an accelerated rate. Thus the question you should be asking is which type of mathematics do you think you will enjoy or are more suited to. In this country, geometry is not taught much prior to university level study, though it holds a great deal of importance as you progress onto higher mathematics, however, depending on the course route you take, you might not cross it at all. What I am trying to say is, it is not enough to say you want to study maths, but rather which area you find most interested and try to find a University whose research department matches your interests, because their taught courses will reflect their research interests nearly always. This distinction was not abundantly clear to me when I was younger and I had to make the necessary adjustments later on, which is obviously more difficult.
BSc Mathematics/ MSc Applied Mathematics
P.S if your heart is set on pursuing a degree in maths, I would drop history and pick up further pure. If there is a possibility you are going to do one of the sciences, the change 'may' have little to no impact. However, the hard sciences have always been the most respected among A-Levels. Worth noting that the history of mathematics can be particularly important though I do not think an A-Level in history is necessary for it at all.
I hope this has helped.