Delete gemm python interface and tests.

Author: zhuyue

python/infinicore/ops/gemm.py

@@ -5,7 +5,6 @@
 #include "ops/add.hpp"
 #include "ops/attention.hpp"
 #include "ops/causal_softmax.hpp"
-#include "ops/gemm.hpp"
 #include "ops/matmul.hpp"
 #include "ops/rearrange.hpp"
 #include "ops/rms_norm.hpp"
@@ -20,7 +19,6 @@ inline void bind(py::module &m) {
     bind_add(m);
     bind_attention(m);
     bind_causal_softmax(m);
-    bind_gemm(m);
     bind_matmul(m);
     bind_rearrange(m);
     bind_rms_norm(m);