Update upcoming goals in README.md

Removed goals for switching to pcap and adding benchmarks.

Author: Morcules

README.md

@@ -30,8 +30,6 @@
 ## Goals
 
 ### Upcoming goals
-- Switch from pcap to AF_XDP
-- Add performance benchmarks
 - Optimize the most obvious parts of the codebase
 - Stabilize the API to avoid breaking changes in future releases