test: remove --always-turbofan flag

It was removed from V8.

Refs: 7779ff03eb

test/v8-updates/test-linux-perf-logger.js

@@ -55,7 +55,7 @@ const testCases = [
   },
   {
     title: '--perf-basic-prof compiled',
-    nodeFlags: ['--perf-basic-prof', '--no-turbo-inlining', '--always-turbofan',
+    nodeFlags: ['--perf-basic-prof', '--no-turbo-inlining',
                 '--minimum-invocations-before-optimization=0'],
     matches: [
       String.raw`RegExp\.> src: 'test-regex' flags: 'gi'`,
@@ -81,7 +81,7 @@ const testCases = [
   },
   {
     title: '--perf-basic-prof-only-functions compiled',
-    nodeFlags: ['--perf-basic-prof-only-functions', '--no-turbo-inlining', '--always-turbofan',
+    nodeFlags: ['--perf-basic-prof-only-functions', '--no-turbo-inlining',
                 '--minimum-invocations-before-optimization=0'],
     matches: [
       'JS:~functionOne .+/linux-perf-logger.js',

test/v8-updates/test-linux-perf.js

@@ -61,7 +61,6 @@ const perfCompiledFramesArgs = [
   '--',
   process.execPath,
   ...nodeCommonFlags,
-  '--always-turbofan',
   fixtures.path('linux-perf.js'),
   `${sleepTime}`,
   `${repeat}`,

tools/test.py

@@ -1672,9 +1672,6 @@ def Main():
   if options.check_deopts:
     options.node_args.append("--trace-opt")
     options.node_args.append("--trace-file-names")
-    # --always-turbofan is needed because many tests do not run long enough for
-    # the optimizer to kick in, so this flag will force it to run.
-    options.node_args.append("--always-turbofan")
     options.progress = "deopts"
 
   if options.error_reporter: