Fpga-bridge in socfpga-4.4 branch

Why is there no driver for FPGA bridge (drivers/misc/fpga-bridge) in socfpga-4.4 branch?

The last commit to the driver is:

* d7ddc79 - Tue, 7 Oct 2014 11:22:23 -0500 (1 year, 8 months ago)
|           misc: bridge: convert bridge driver to reset driver framework - Dinh Nguyen

which is left on socfpga-4.3 branch.