remove overcommit settings from CI (#10181)

Issue #9634 has been solved since.

.github/workflows/ci.yml

@@ -50,10 +50,6 @@ jobs:
             flags: "--exclude integration-tests --exclude node-runtime --exclude runtime-params-estimator --exclude near-network --exclude estimator-warehouse"
     timeout-minutes: 90
     steps:
-      # Some of the tests allocate really sparse maps, so heuristic-based overcommit limits are not
-      # appropriate here.
-      # FIXME(#9634): remove this once the issue is resolved.
-      - run: sudo sysctl vm.overcommit_memory=1 || true
       - uses: actions/checkout@v4
       - uses: baptiste0928/cargo-install@21a18ba3bf4a184d1804e8b759930d3471b1c941
         with: