Do not assert unsupported required scopes (#27520)

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## **Description**

Providing unsupportable scopes in the requiredScopes param no longer
causes the CAIP-25 request to fail immediately

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## **Related issues**

Fixes:

## **Manual testing steps**

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## **Pre-merge reviewer checklist**

- [ ] I've manually tested the PR (e.g. pull and build branch, run the
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app/scripts/lib/multichain-api/wallet-createSession/handler.js

@@ -71,11 +71,6 @@ export async function walletCreateSessionHandler(req, res, _next, end, hooks) {
       isChainIdSupported: existsNetworkClientForChainId,
       isChainIdSupportable: existsEip3085ForChainId,
     });
-    // We assert if the unsupportable scopes are supported in order
-    // to have an appropriate error thrown for the response
-    assertScopesSupported(unsupportableRequiredScopes, {
-      isChainIdSupported: existsNetworkClientForChainId,
-    });
 
     const {
       supportedScopes: supportedOptionalScopes,

app/scripts/lib/multichain-api/wallet-createSession/handler.test.js

@@ -274,36 +274,6 @@ describe('wallet_createSession', () => {
     expect(isChainIdSupportableBody).toContain('validScopedProperties');
   });
 
-  it('asserts any unsupported required scopes', async () => {
-    const { handler } = createMockedHandler();
-    bucketScopes.mockReturnValueOnce({
-      unsupportableScopes: {
-        'foo:bar': {
-          methods: [],
-          notifications: [],
-        },
-      },
-    });
-    await handler(baseRequest);
-
-    expect(assertScopesSupported).toHaveBeenNthCalledWith(
-      1,
-      {
-        'foo:bar': {
-          methods: [],
-          notifications: [],
-        },
-      },
-      expect.objectContaining({
-        isChainIdSupported: expect.any(Function),
-      }),
-    );
-
-    const isChainIdSupportedBody =
-      assertScopesSupported.mock.calls[0][1].isChainIdSupported.toString();
-    expect(isChainIdSupportedBody).toContain('findNetworkClientIdByChainId');
-  });
-
   it('buckets the optional scopes', async () => {
     const { handler } = createMockedHandler();
     validateAndFlattenScopes.mockReturnValue({