I've not seen a partition named
SSD Reserved before, and I'd be surprised if it were required for booting. Normally a 100MB 'System Reserved' partition could be made, which is detailed here
This “stub” of a partition, which is new in Windows 7, serves two
functions. First, it holds the Boot Manager code and the Boot
Configuration Database. Second, it reserves space for the startup
files required by the BitLocker Drive Encryption feature. If you ever
decide to encrypt your system drive using BitLocker, you won’t have to
repartition your system drive to make it possible.
As I'm not sure if this is that partition or not, as it would usually be labelled differently, you could do two things:
Check the contents of the partition by
Right clicking on the partition, and clicking
Change Drive Letter and Paths. Add an unused drive letter and browse the contents, it should be quite easy to search for any files you found and see if they're related to a system reserved partition.
Disconnect the drive from your machine and see if the machine has any trouble booting. Test it and if you have no issues, it's safe to assume it's not going to cause any harm removing the one partition.
In all honesty, it's such a small amount of space it probably isn't worth the hassle to remove it and then resize the large partition to fill the space (You can't resize to the left of the partition as easily as to the right, the contents will need to be shifted left and then the expansion made after the partition). Personally, I'd leave it be, it's doing no harm.