LoadModule now always returns the module

We don't need to load the configuration twice, since configload can
return the module for us.

internal/command/testdata/init-check-required-version-first-module/mod/main.tf

@@ -0,0 +1,17 @@
+terraform {
+  required_version = ">200.0.0"
+
+  bad {
+    block = "false"
+  }
+
+  required_providers {
+    bang = {
+      oops = "boom"
+    }
+  }
+}
+
+nope {
+  boom {}
+}