Remove error and update coverage

jest.config.js

@@ -41,10 +41,10 @@ module.exports = {
   // An object that configures minimum threshold enforcement for coverage results
   coverageThreshold: {
     global: {
-      branches: 69.51,
+      branches: 70.37,
       functions: 92.72,
-      lines: 90.47,
-      statements: 90.69,
+      lines: 90.72,
+      statements: 90.93,
     },
   },
   preset: 'ts-jest',

src/KeyringController.ts

@@ -756,11 +756,7 @@ class KeyringController extends EventEmitter {
    * @returns Keyrings matching the specified type.
    */
   getKeyringsByType(type: string): Keyring<Json>[] {
-    const keyrings = this.keyrings.filter((keyring) => keyring.type === type);
-    if (!keyrings.length) {
-      throw new Error(KeyringControllerError.NoKeyring);
-    }
-    return keyrings;
+    return this.keyrings.filter((keyring) => keyring.type === type);
   }
 
   /**