fix onLoggedIn getting called twice

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

src/components/structures/MatrixChat.js

@@ -1902,13 +1902,19 @@ export default createReactClass({
         const cli = MatrixClientPeg.get();
         // We're checking `isCryptoAvailable` here instead of `isCryptoEnabled`
         // because the client hasn't been started yet.
-        if (!isCryptoAvailable()) {
+        const cryptoAvailable = isCryptoAvailable();
+        if (!cryptoAvailable) {
             this._onLoggedIn();
         }
 
         this.setState({ pendingInitialSync: true });
         await this.firstSyncPromise.promise;
 
+        if (!cryptoAvailable) {
+            this.setState({ pendingInitialSync: false });
+            return setLoggedInPromise;
+        }
+
         // Test for the master cross-signing key in SSSS as a quick proxy for
         // whether cross-signing has been set up on the account.
         const masterKeyInStorage = !!cli.getAccountData("m.cross_signing.master");