delete submodules

Author: jarviszeng-zjc

.gitmodules

@@ -1,12 +0,0 @@
-[submodule "fate"]
-	path = python/component_plugins/fate
-	url = https://github.com/FederatedAI/FATE.git
-	branch = develop-1.7
-[submodule "fateboard"]
-	path = fateboard
-	url = https://github.com/FederatedAI/FATE-Board.git
-	branch = develop-1.7.0
-[submodule "eggroll"]
-	path = eggroll
-	url = https://github.com/WeBankFinTech/eggroll.git
-	branch = release-2.4.0-build-7