Revert "Fall back to other methods of schema loading when one fails (#533)"

This reverts commit b48e7bf.

Author: abernix

packages/apollo/src/load-schema.ts

@@ -7,28 +7,15 @@ export async function loadSchema(
   config: ApolloConfig
 ): Promise<GraphQLSchema | undefined> {
   if (dependency.schema) {
-    try {
-      return await fetchSchema(
-        { url: dependency.schema },
-        config.projectFolder
-      );
-    } catch {}
+    return await fetchSchema({ url: dependency.schema }, config.projectFolder);
+  } else if (dependency.endpoint && dependency.endpoint.url) {
+    return await fetchSchema(dependency.endpoint, config.projectFolder);
+  } else if (dependency.engineKey) {
+    return await fetchSchemaFromEngine(
+      dependency.engineKey,
+      config.engineEndpoint
+    );
+  } else {
+    return undefined;
   }
-
-  if (dependency.endpoint && dependency.endpoint.url) {
-    try {
-      return await fetchSchema(dependency.endpoint, config.projectFolder);
-    } catch {}
-  }
-
-  if (dependency.engineKey) {
-    try {
-      return await fetchSchemaFromEngine(
-        dependency.engineKey,
-        config.engineEndpoint
-      );
-    } catch {}
-  }
-
-  return undefined;
 }