Userland: Tighten a *lot* of pledges! :^)

Since applications using Core::EventLoop no longer need to create a
socket in /tmp/rpc/, and also don't need to listen for incoming
connections on this socket, we can remove a whole bunch of pledges!

Userland/Services/LookupServer/main.cpp

@@ -12,7 +12,7 @@
 
 int main([[maybe_unused]] int argc, [[maybe_unused]] char** argv)
 {
-    if (pledge("stdio accept unix inet cpath rpath fattr", nullptr) < 0) {
+    if (pledge("stdio accept unix inet rpath", nullptr) < 0) {
         perror("pledge");
         return 1;
     }