mojo/shared: Re-revert unreverted import for mojom.go generation

Mojo currently doesn't support multiple imports well

Change-Id: I1e80af014b6b25c55330f738069b5943095dfc92
diff --git a/mojo.mk b/mojo.mk
index 080a84d..62218ea 100644
--- a/mojo.mk
+++ b/mojo.mk
@@ -55,7 +55,7 @@
 # $4 is language (go, dart, ...).
 define MOJOM_GEN
 	mkdir -p $3
-	$(MOJO_SDK)/src/mojo/public/tools/bindings/mojom_bindings_generator.py $1 -I $(MOJO_SDK)/src -I $2 -d $2 -o $3 -g $4
+	$(MOJO_SDK)/src/mojo/public/tools/bindings/mojom_bindings_generator.py $1 -I $2 -d $2 -o $3 -g $4
 endef
 
 define MOJO_RUN