Enable group mode varlen kernel generation for PyTorch

Author: chinmaydk99

example/ck_tile/01_fmha/codegen/ops/fmha_fwd.py

@@ -1219,7 +1219,6 @@ def fit(problem_ctx: ProblemContext, kernel_ctx: KernelContext) -> bool:
             cond &= kernel_ctx.pipeline.F_vlayout == "row"
             cond &= kernel_ctx.pipeline.F_bias in ["no", "bias"]
             cond &= kernel_ctx.pipeline.F_qscale == "no"
-            cond &= problem_ctx.mode == "batch"
             cond &= kernel_ctx.pipeline.F_skip == "f"
             cond &= kernel_ctx.pipeline.F_logits == "f"
             return cond