Applets/ResourceGraph: Remove unnecessary unveiling of /etc/passwd

This used to be needed by Core::ProcessStatisticsReader, but since we no
longer use that for the CPU graph, we can just lose it (along with a
FIXME about it.)

Userland/Applets/ResourceGraph/main.cpp

@@ -9,7 +9,6 @@
 #include <AK/JsonObject.h>
 #include <LibCore/ArgsParser.h>
 #include <LibCore/File.h>
-#include <LibCore/ProcessStatisticsReader.h>
 #include <LibGUI/Application.h>
 #include <LibGUI/Frame.h>
 #include <LibGUI/Painter.h>
@@ -241,13 +240,6 @@ int main(int argc, char** argv)
         return 1;
     }
 
-    // FIXME: This is required by Core::ProcessStatisticsReader.
-    //        It would be good if we didn't depend on that.
-    if (unveil("/etc/passwd", "r") < 0) {
-        perror("unveil");
-        return 1;
-    }
-
     if (unveil("/proc/stat", "r") < 0) {
         perror("unveil");
         return 1;