Remove some unused code that bazel 0.22 detects as an error

Change-Id: I750ee0d62b49889b028ad4c541f6e7b42f2de09f
diff --git a/tools/build/bazel/osgi_java_library.bzl b/tools/build/bazel/osgi_java_library.bzl
index 571e3c3..c6fd523 100644
--- a/tools/build/bazel/osgi_java_library.bzl
+++ b/tools/build/bazel/osgi_java_library.bzl
@@ -225,18 +225,14 @@
     package_name = ctx.attr.package_name
 
     srcs_arg = ""
-    resources_arg = ""
 
     for file in ctx.files.srcs:
         srcs_arg += file.path + ","
 
-    for resource in resources_arg:
-        resources_arg += resource.path + ","
-
     # call swagger generator to make the swagger JSON and java files
     arguments = [
         srcs_arg,
-        resources_arg,
+        "",
         "",
         package_name + "/src/main/resources",
         output_dir,
@@ -273,18 +269,14 @@
     package_name = ctx.attr.package_name
 
     srcs_arg = ""
-    resources_arg = ""
 
     for file in ctx.files.srcs:
         srcs_arg += file.path + ","
 
-    for resource in resources_arg:
-        resources_arg += resource.path + ","
-
     # call swagger generator to make the swagger JSON and java files
     arguments = [
         srcs_arg,
-        resources_arg,
+        "",
         "",
         package_name + "/src/main/resources",
         output_dir,