remove submodules

[matrix_esp_thesis] / ext / mongoose

diff --git a/ext/mongoose b/ext/mongoose
deleted file mode 160000 (submodule)
index 4d06f33..0000000
--- a/ext/mongoose
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 4d06f330891a997384bf96309be7c5422639e54e