message: [MLIR][KernelGen] Remove unroll factor when 1
  Skip loop unrolling logic entirely.
diff: @@ -315,7 +315,6 @@ gen_kernel_library(
  "f32",
  "f64",
  ],
  - unroll_factors = "1",
  )
  gen_kernel_library(
  @@ -349,7 +348,6 @@ gen_kernel_library(
  generate_unranked = True,
  tile_size = "256",
  types = ["i1"],
  - unroll_factors = "1",
  )
  gen_kernel_library(
  @@ -360,7 +358,6 @@ gen_kernel_library(
  "f32",
  "f64",
  ],
  - unroll_factors = "1",
  )
  gen_kernel_library(
  @@ -572,7 +569,6 @@ gen_kernel_library(
  "f32",
  "f64",
  ],
  - unroll_factors = "1",
  )
  for name in [
  "cos",
  