fix: only apply spongix ram hard limit to avoid slow failures

Author: johnalotoski

nix/metal/bitteProfile/spongix.nix

@@ -12,7 +12,6 @@
     RestartSec = lib.mkForce "30s";
     OOMScoreAdjust = 1000;
     MemoryAccounting = "true";
-    MemoryHigh = "60%";
     MemoryMax = "70%";
   };