diff --git a/.gitmodules b/.gitmodules
deleted file mode 100644
index adb5b81b9..000000000
--- a/.gitmodules
+++ /dev/null
@@ -1,14 +0,0 @@
-[submodule "poros/third_party/googletest"]
-	path = poros/third_party/googletest
-	url = https://github.com/google/googletest.git
-[submodule "poros/third_party/gflags"]
-	path = poros/third_party/gflags
-	url = https://github.com/gflags/gflags.git
-[submodule "examples/multimodal/stable_diffusion/swift+coreml/ml-stable-diffusion"]
-	path = examples/multimodal/stable_diffusion/swift+coreml/ml-stable-diffusion
-	url = https://github.com/lishicheng1996/ml-stable-diffusion.git
-	branch = paddle_SD
-[submodule "examples/multimodal/stable_diffusion/swift+coreml/swift_coreml_diffusers"]
-	path = examples/multimodal/stable_diffusion/swift+coreml/swift_coreml_diffusers
-	url = https://github.com/lishicheng1996/swift-coreml-diffusers.git
-	branch = paddle_stable_diffusion
diff --git a/examples/multimodal/stable_diffusion/swift+coreml/ml-stable-diffusion b/examples/multimodal/stable_diffusion/swift+coreml/ml-stable-diffusion
deleted file mode 160000
index a2384f880..000000000
--- a/examples/multimodal/stable_diffusion/swift+coreml/ml-stable-diffusion
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit a2384f8809f0de1fc634efd84d0ab5e3151113a9
diff --git a/examples/multimodal/stable_diffusion/swift+coreml/swift_coreml_diffusers b/examples/multimodal/stable_diffusion/swift+coreml/swift_coreml_diffusers
deleted file mode 160000
index ae7c02598..000000000
--- a/examples/multimodal/stable_diffusion/swift+coreml/swift_coreml_diffusers
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit ae7c02598729a6a01037b1596293cbd0c83442d8