Don't ask user for private key backup password, because it won't be used

src/js/crypto.js

@@ -202,46 +202,28 @@ function exportPublicKey() {
     });
 }
 
+/**
+ * This should be modified to prompt the user for a backup password,
+ * but that doesn't work. https://github.com/keybase/kbpgp/issues/211
+ * @returns {undefined}
+ */
 function exportPrivateKey() {
-    showPasswordPrompt("Enter password for private key:", function (pass) {
-        const savepriv = function (key) {
-            showPasswordPrompt("Enter a password to protect the key backup:", function (pass2) {
+    loadKeyFromLocalStorage(function (message, ok) {
+        if (!ok) {
+            showAlert("Error: " + message);
+            return;
+        }
         openSaveFileDialog(function (path) {
-                    key.export_pgp_private({
-                        passphrase: pass2
-                    }, function (err, pgp_private) {
+            keymgr.export_pgp_private({}, function (err, pgp_private) {
                 if (err) {
                     showAlert("Something went wrong.");
                 } else {
                     writeToFile(path, pgp_private);
+                    showAlert("Private key backup saved.");
                 }
             });
         }, "private-key.asc", ".asc");
     });
-        }
-        kbpgp.KeyManager.import_from_armored_pgp({
-            armored: getStorage("signingkey")
-        }, function (err, key) {
-            if (!err) {
-                if (key.is_pgp_locked()) {
-                    key.unlock_pgp({
-                        passphrase: pass
-                    }, function (err) {
-                        if (!err) {
-                            savepriv(key);
-                        } else {
-                            showAlert("Could not unlock key. Password is probably incorrect.");
-                        }
-                    });
-                } else {
-                    console.log("Loaded private key w/o passphrase");
-                    savepriv(key);
-                }
-            } else {
-                showAlert("Could not unlock key: " + err);
-            }
-        });
-    });
 }
 
 function importPrivateKey() {

src/js/main.js

@@ -255,7 +255,7 @@ $("#passwordModal").on("shown.bs.modal", function () {
     $("#passwordModalInput").focus();
 });
 
-$(".modal").on("keydown", function (e) {
+$(".modal.show").on("keydown", function (e) {
     if (e.keyCode == 13) {
         $(this).find(".btn-default").first().click();
     }