Update pfcpsim.pb file due to deprecation

[gab-arrobo]

Remove the pfcpsim api client and server to another file because these components are not automatically generated from protoc.

Tested changes using OnRamp and deploying the pfcpsim locally (13 sessions were created)

2024-10-16T19:10:25.674-0700    INFO    pfcpsim/main.go:41      server listening on port 54321  {"component": "LIB", "category": "Pfcpsim"}
2024-10-16T19:11:04.549-0700    INFO    pfcpsim/server.go:101   Association established {"component": "LIB", "category": "Pfcpsim"}
2024-10-16T19:12:53.795-0700    INFO    pfcpsim/server.go:188   successfully parsed application filter. SDF Filter: permit out ip from any to assigned  {"component": "LIB", "category": "Pfcpsim"}
2024-10-16T19:12:53.801-0700    INFO    pfcpsim/server.go:188   successfully parsed application filter. SDF Filter: permit out ip from any to assigned  {"component": "LIB", "category": "Pfcpsim"}
2024-10-16T19:12:53.805-0700    INFO    pfcpsim/server.go:188   successfully parsed application filter. SDF Filter: permit out ip from any to assigned  {"component": "LIB", "category": "Pfcpsim"}
2024-10-16T19:12:53.809-0700    INFO    pfcpsim/server.go:188   successfully parsed application filter. SDF Filter: permit out ip from any to assigned  {"component": "LIB", "category": "Pfcpsim"}
2024-10-16T19:12:53.814-0700    INFO    pfcpsim/server.go:188   successfully parsed application filter. SDF Filter: permit out ip from any to assigned  {"component": "LIB", "category": "Pfcpsim"}
2024-10-16T19:12:53.817-0700    INFO    pfcpsim/server.go:188   successfully parsed application filter. SDF Filter: permit out ip from any to assigned  {"component": "LIB", "category": "Pfcpsim"}
2024-10-16T19:12:53.821-0700    INFO    pfcpsim/server.go:188   successfully parsed application filter. SDF Filter: permit out ip from any to assigned  {"component": "LIB", "category": "Pfcpsim"}
2024-10-16T19:12:53.825-0700    INFO    pfcpsim/server.go:188   successfully parsed application filter. SDF Filter: permit out ip from any to assigned  {"component": "LIB", "category": "Pfcpsim"}
2024-10-16T19:12:53.829-0700    INFO    pfcpsim/server.go:188   successfully parsed application filter. SDF Filter: permit out ip from any to assigned  {"component": "LIB", "category": "Pfcpsim"}
2024-10-16T19:12:53.833-0700    INFO    pfcpsim/server.go:188   successfully parsed application filter. SDF Filter: permit out ip from any to assigned  {"component": "LIB", "category": "Pfcpsim"}
2024-10-16T19:12:53.837-0700    INFO    pfcpsim/server.go:188   successfully parsed application filter. SDF Filter: permit out ip from any to assigned  {"component": "LIB", "category": "Pfcpsim"}
2024-10-16T19:12:53.841-0700    INFO    pfcpsim/server.go:188   successfully parsed application filter. SDF Filter: permit out ip from any to assigned  {"component": "LIB", "category": "Pfcpsim"}
2024-10-16T19:12:53.845-0700    INFO    pfcpsim/server.go:188   successfully parsed application filter. SDF Filter: permit out ip from any to assigned  {"component": "LIB", "category": "Pfcpsim"}
2024-10-16T19:12:53.849-0700    INFO    pfcpsim/server.go:305   13 sessions were established using 2 as baseID  {"component": "LIB", "category": "Pfcpsim"}
2024-10-16T19:13:18.921-0700    INFO    pfcpsim/server.go:438   13 sessions deleted; activeSessions: 0  {"component": "LIB", "category": "Pfcpsim"}
2024-10-16T19:13:27.875-0700    INFO    pfcpsim/server.go:124   Association teardown completed and connection to remote peer closed     {"component": "LIB", "category": "Pfcpsim"}