Remove node nightly tests warning checks

(superseded by TypeStrong#1701)

package.json

@@ -69,8 +69,8 @@
     "build-tsc": "tsc",
     "build-configSchema": "typescript-json-schema --topRef --refs --validationKeywords allOf --out tsconfig.schema.json tsconfig.build-schema.json TsConfigSchema && node --require ./register ./scripts/create-merged-schema",
     "build-pack": "node ./scripts/build-pack.js",
-    "test-spec": "ava --node-arguments=--no-deprecation",
-    "test-cov": "nyc ava --node-arguments=--no-deprecation",
+    "test-spec": "ava",
+    "test-cov": "nyc ava",
     "test": "npm run build && npm run lint && npm run test-cov --",
     "test-local": "npm run lint-fix && npm run build-tsc && npm run build-pack && npm run test-spec --",
     "pre-debug": "npm run build-tsc && npm run build-pack",

src/test/esm-loader.spec.ts

@@ -350,10 +350,7 @@ test.suite('esm', (test) => {
           const { err, stdout, stderr } = await cb();
           expect(err).toBe(null);
           expect(stdout.trim()).toBe('CLI args: foo bar');
-          // Nightly builds of Node.js might randomly start printing warnings,
-          // which would cause this test to fail despite actually working,
-          // so we should ignore stderr when testing on Node.js nightly.
-          if (!process.version.includes('nightly')) expect(stderr).toBe('');
+          expect(stderr).toBe('');
         });
       }
 
@@ -402,10 +399,7 @@ test.suite('esm', (test) => {
                 `child registered signal handlers\nchild received signal: ${signal}\nchild exiting`
               );
             }
-            // Nightly builds of Node.js might randomly start printing warnings,
-            // which would cause this test to fail despite actually working,
-            // so we should ignore stderr when testing on Node.js nightly.
-            if (!process.version.includes('nightly')) expect(stderr).toBe('');
+            expect(stderr).toBe('');
           });
         }
       });