update gitmodules

vaaaaanquish · vaaaaanquish · commit c6e3216d978e · 2021-09-27T20:59:49.000+09:00
diff --git a/.gitmodules b/.gitmodules
@@ -1,5 +1,4 @@
 [submodule "xgboost-sys/xgboost"]
 	path = xgboost-sys/xgboost
 	url = https://github.com/davechallis/xgboost
-	branch = v0.80-modified
-	ignore = dirty
+	branch = master
