skip gather_gemv code check for B200 and fb_code (#666)

Author: Sibylau

test/test_examples.py

@@ -12,7 +12,6 @@
 from helion._testing import TestCase
 from helion._testing import check_example
 from helion._testing import import_path
-from helion._testing import is_cuda
 from helion._testing import skipIfRefEager
 from helion._testing import skipIfRocm
 
@@ -1195,7 +1194,7 @@ def test_gather_gemv(self):
         def expected(w, idx, x):
             return w[idx].to(x.dtype) @ x
 
-        code = check_example(
+        check_example(
             "gather_gemv",
             args,
             expected(*args),
@@ -1205,9 +1204,6 @@ def expected(w, idx, x):
             num_stages=1,
         )
 
-        if is_cuda():
-            self.assertExpectedJournal(code)
-
     def test_int4_gemm(self):
         # Matrix dimensions
         M, K, N = 256, 512, 256