[Misc] Remove xbyak (#5752)

Co-authored-by: Ubuntu <ubuntu@ip-172-31-28-63.ap-northeast-1.compute.internal>

.gitmodules

@@ -13,9 +13,6 @@
 [submodule "third_party/phmap"]
 	path = third_party/phmap
 	url = https://github.com/greg7mdp/parallel-hashmap.git
-[submodule "third_party/xbyak"]
-	path = third_party/xbyak
-	url = https://github.com/herumi/xbyak
 [submodule "third_party/tvm"]
 	path = third_party/tvm
 	url = https://github.com/apache/incubator-tvm

CMakeLists.txt

@@ -181,7 +181,6 @@ target_include_directories(dgl PRIVATE "include")
 target_include_directories(dgl PRIVATE "third_party/dlpack/include")
 target_include_directories(dgl PRIVATE "third_party/dmlc-core/include")
 target_include_directories(dgl PRIVATE "third_party/phmap/")
-target_include_directories(dgl PRIVATE "third_party/xbyak/")
 target_include_directories(dgl PRIVATE "third_party/METIS/include/")
 target_include_directories(dgl PRIVATE "tensoradapter/include")
 target_include_directories(dgl PRIVATE "third_party/nanoflann/include")
@@ -326,7 +325,6 @@ if(BUILD_CPP_TEST)
   include_directories(${gtest_SOURCE_DIR}/include ${gtest_SOURCE_DIR})
   include_directories("include")
   include_directories("third_party/dlpack/include")
-  include_directories("third_party/xbyak")
   include_directories("third_party/dmlc-core/include")
   include_directories("third_party/phmap")
   include_directories("third_party/libxsmm/include")

docs/source/install/index.rst

@@ -109,7 +109,7 @@ install the Python binding for DGL.
 
    mkdir build
    cd build
-   cmake -DUSE_OPENMP=off -DCMAKE_C_FLAGS='-DXBYAK_DONT_USE_MAP_JIT' -DCMAKE_CXX_FLAGS='-DXBYAK_DONT_USE_MAP_JIT' -DUSE_LIBXSMM=OFF ..
+   cmake -DUSE_OPENMP=off -DUSE_LIBXSMM=OFF ..
    make -j4
    cd ../python
    python setup.py install

xbyak @ 757e4063

-Subproject commit 757e4063f6464740b8ff4a2cae9136d2f8458020