[test] Replace obsolete FAST_VARIANTS modifier

The fast variants set got the same as no variants after crankshaft
deprecation and there is no plan to extend it again. Hence we remove
the modifier now.

TBR=yangguo@chromium.org

Bug: v8:7264
Change-Id: Ib577542741841b5b9542327b90afea8d5a62c879
Reviewed-on: https://chromium-review.googlesource.com/866496Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50566}

test/mjsunit/mjsunit.status

@@ -142,9 +142,9 @@
   'math-floor-of-div-nosudiv': [PASS, SLOW, ['arch not in [arm, arm64, android_arm, android_arm64]', SKIP]],
 
   # Too slow for slow variants.
-  'asm/embenchen/*': [PASS, SLOW, FAST_VARIANTS],
-  'asm/poppler/*': [PASS, SLOW, FAST_VARIANTS],
-  'asm/sqlite3/*': [PASS, SLOW, FAST_VARIANTS],
+  'asm/embenchen/*': [PASS, SLOW, NO_VARIANTS],
+  'asm/poppler/*': [PASS, SLOW, NO_VARIANTS],
+  'asm/sqlite3/*': [PASS, SLOW, NO_VARIANTS],
 
   # Slow tests.
   'copy-on-write-assert': [PASS, SLOW],
@@ -264,7 +264,7 @@
   'regress/regress-inline-getter-near-stack-limit': [PASS, SLOW],
 
   # BUG(v8:4779): Crashes flakily with stress mode on arm64.
-  'array-splice': [PASS, SLOW, ['arch == arm64', FAST_VARIANTS]],
+  'array-splice': [PASS, SLOW, ['arch == arm64', NO_VARIANTS]],
 
   # BUG(chromium:751825): Crashes flakily.
   'wasm/js-api': [SKIP],

test/mozilla/mozilla.status

@@ -158,7 +158,7 @@
 
   # Compiles a long chain of && or || operations, can time out under slower
   # variants.
-  'js1_5/Expressions/regress-394673': [PASS, FAST_VARIANTS],
+  'js1_5/Expressions/regress-394673': [PASS, NO_VARIANTS],
 
   # This takes a long time to run (~100 seconds). It should only be run
   # by the really patient.
@@ -883,10 +883,10 @@
 
 ['no_i18n == True and mode == debug', {
   # Tests too slow for no18n debug.
-  'ecma_3/Statements/regress-302439': [PASS, FAST_VARIANTS],
+  'ecma_3/Statements/regress-302439': [PASS, NO_VARIANTS],
   'js1_5/Regress/regress-98901': [SKIP],
-  'ecma_3/RegExp/perlstress-001': [PASS, FAST_VARIANTS],
-  'js1_5/extensions/regress-311161': [FAIL_OK, FAST_VARIANTS],
+  'ecma_3/RegExp/perlstress-001': [PASS, NO_VARIANTS],
+  'js1_5/extensions/regress-311161': [FAIL_OK, NO_VARIANTS],
 }],  # 'no_i18n == True and mode == debug'