test(sdk): revert CI hard-fail on missing SFCC_INSTANCE in logs integration

The repo's CI does not provision a live B2C instance — the logs integration
suite is genuinely opt-in and skipping is the correct behavior when the
prerequisite is unavailable. Reverts the over-zealous "fail loud under CI"
change introduced earlier in this PR.

Author: clavery

packages/b2c-tooling-sdk/test/operations/logs/integration.test.ts

@@ -58,14 +58,6 @@ describe('operations/logs integration', function () {
 
   beforeEach(function () {
     if (!hasInstance) {
-      // Fail loudly in CI: integration tests must not silently no-op when env is misconfigured.
-      if (process.env.CI) {
-        throw new Error(
-          'logs integration tests require a configured B2C instance. ' +
-            'Set SFCC_INSTANCE (and SFCC_CONFIG) env vars or provide a dw.json. ' +
-            'In CI, this is a hard failure rather than a skip.',
-        );
-      }
       this.skip();
     }
   });