Remove useless check for crypto methods

services/sync/modules/service.js

@@ -529,22 +529,20 @@ WeaveSvc.prototype = {
 
   verifyPassphrase: function WeaveSvc_verifyPassphrase(username, password, passphrase)
     this._catch(this._notify("verify-passphrase", "", function() {
-      if ('verifyPassphrase' in Svc.Crypto) {
-        this._log.debug("Verifying passphrase");
-        this.username = username;
-        ID.get("WeaveID").setTempPassword(password);
+      this._log.debug("Verifying passphrase");
+      this.username = username;
+      ID.get("WeaveID").setTempPassword(password);
         
-        try {
-          let pubkey = PubKeys.getDefaultKey();
-          let privkey = PrivKeys.get(pubkey.privateKeyUri);
-          return Svc.Crypto.verifyPassphrase(
-            privkey.payload.keyData, passphrase,
-            privkey.payload.salt, privkey.payload.iv
-          );
-        } catch (e) {
-          // this means no keys are present (or there's a network error)
-          return true;
-        }
+      try {
+        let pubkey = PubKeys.getDefaultKey();
+        let privkey = PrivKeys.get(pubkey.privateKeyUri);
+        return Svc.Crypto.verifyPassphrase(
+          privkey.payload.keyData, passphrase,
+          privkey.payload.salt, privkey.payload.iv
+        );
+      } catch (e) {
+        // this means no keys are present (or there's a network error)
+        return true;
       }
       return true;
     }))(),