Move to a singular flag

This might not be enough if we also want to cater for development desktop
builds, but let's start with this and add them back later if needed.

packages/shared/network/api.ts

@@ -73,50 +73,16 @@ export const getFamilyPortalURL = () => {
 };
 
 /**
- * A build is considered as a development build if one of the following holds:
+ * A build is considered as a development build if the NODE_ENV environment
+ * variable is set to 'development'.
  *
- * 1. The NODE_ENV environment variable is set to 'development'. This
- *    automatically happens when we run `yarn dev:foo`, but we can also
- *    explictly set this to development before invoking the build. From the
- *    Next.js docs:
+ * This automatically happens when we run `yarn dev:foo`, but we can also
+ * explictly set it to development before invoking the build. From Next.js docs:
  *
- *    > If the environment variable NODE_ENV is unassigned, Next.js
- *    > automatically assigns development when running the `next dev` command,
- *    > or production for all other commands.
- *
- * 2. Sometimes we're building for a remote deployment, but we want the deployed
-      site to behave as a development build. For example, when deploying the
-      main branch to `testing.ente.io`. In these cases, since the build was done
-      using `yarn export` (which in turn invokes `next build`), the NODE_ENV
-      will not get set to 'development'. To handle such cases, we introduce
-      another variable, NEXT_PUBLIC_ENTE_ENV, which has the same semantics as
- *
- *
- * If the environment variable NODE_ENV is unassigned, Next.js automatically
-   assigns development when running the next dev command, or production for all
-   other commands.
- *    next sets NODE_ENV to `production`.
- *  When we run
- *    `yarn dev:foo`, it invokes `next dev`, which sets NODE_ENV to
- *    'development'. In all other cases (say, `next build`),
- *
-
-It's a dev deployment (and should use the environment override for endpoints )
-in three cases:
-1. when the URL opened is that of the staging web app, or
-2. when the URL opened is that of the staging album app, or
-3. if the app is running locally (hence node_env is development)
-4. if the app is running in test mode
-*/
+ * > If the environment variable NODE_ENV is unassigned, Next.js
+ *   automatically assigns development when running the `next dev` command,
+ *   or production for all other commands.
+ */
 export const isDevDeployment = () => {
-    if (globalThis?.location) {
-        return (
-            process.env.NEXT_PUBLIC_ENTE_WEB_ENDPOINT ===
-                globalThis.location.origin ||
-            process.env.NEXT_PUBLIC_ENTE_ALBUM_ENDPOINT ===
-                globalThis.location.origin ||
-            process.env.NEXT_PUBLIC_IS_TEST_APP === 'true' ||
-            process.env.NODE_ENV === 'development'
-        );
-    }
+    return process.env.NODE_ENV === 'development';
 };