Move pastebin-stream configuration directly into the createJsonConfiguration call

applications/pastebin-stream.nix

@@ -8,7 +8,9 @@
 	in
 		{errorPath, debugMode ? false, rev, sha256}:
 			let
-				configuration = {
+				configurationFile = createJsonConfiguration {
+					name = "pastebin-stream-configuration.json";
+					contents = {
 						errors = {
 							directory = errorPath;
 						};
@@ -21,10 +23,6 @@
 							};
 						};
 					};
-
-				configurationFile = createJsonConfiguration {
-					name = "pastebin-stream-configuration.json";
-					contents = configuration;
 				};
 			in
 				nodeApplication {