cleaning up redundancy

.gitmodules

diff --git a/.gitmodules b/.gitmodules
index dae1d90..28810d3 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,12 +1,6 @@
-[submodule "stablehlo"]
-	path = externals/stablehlo
-	url = https://github.com/openxla/stablehlo.git
 [submodule "torch-mlir"]
 	path = externals/torch-mlir
 	url = https://github.com/llvm/torch-mlir.git
-[submodule "third_party/llvm-project"]
-	path = externals/llvm-project
-	url = https://github.com/llvm/llvm-project.git
 [submodule "externals/Enzyme"]
 	path = externals/Enzyme
 	url = https://github.com/EnzymeAD/Enzyme.git

externals/llvm-project

diff --git a/externals/llvm-project b/externals/llvm-project
deleted file mode 160000
index f918c05..0000000
--- a/externals/llvm-project
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit f918c056f06968763870bc3e6b9f9d7074e1f867

externals/stablehlo

diff --git a/externals/stablehlo b/externals/stablehlo
deleted file mode 160000
index bbda3a8..0000000
--- a/externals/stablehlo
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit bbda3a8805eb7737ccef532e37a9a39191908c08