Revert "Fix: Country filter plain text (#452)"

This reverts commit f4dd6e0.

Author: slavingia

e2e/settings/tax.spec.ts

@@ -148,40 +148,6 @@ test.describe("Tax settings", () => {
       ]);
     });
 
-    test("allows searching for countries by name", async ({ page }) => {
-      await login(page, user);
-      await page.goto("/settings/tax");
-
-      // Test partial country name search
-      await page.getByRole("combobox", { name: "Country of citizenship" }).click();
-      await page.getByPlaceholder("Search...").fill("polan");
-      await expect(page.getByRole("option", { name: "Poland" })).toBeVisible();
-      await page.getByRole("option", { name: "Poland" }).click();
-      await expect(page.getByRole("combobox", { name: "Country of citizenship" })).toHaveText("Poland");
-
-      // Test another partial search
-      await page.getByRole("combobox", { name: "Country of residence" }).click();
-      await page.getByPlaceholder("Search...").fill("united sta");
-      await expect(page.getByRole("option", { name: "United States" })).toBeVisible();
-      await expect(page.getByRole("option", { name: "United States Minor Outlying Islands" })).toBeVisible();
-      await page.getByRole("option", { name: "United States" }).click();
-      await expect(page.getByRole("combobox", { name: "Country of residence" })).toHaveText("United States");
-
-      // Test case-insensitive search
-      await page.getByRole("combobox", { name: "Country of citizenship" }).click();
-      await page.getByPlaceholder("Search...").fill("CANADA");
-      await expect(page.getByRole("option", { name: "Canada" })).toBeVisible();
-      await page.getByRole("option", { name: "Canada" }).click();
-      await expect(page.getByRole("combobox", { name: "Country of citizenship" })).toHaveText("Canada");
-
-      // Test that country code still works
-      await page.getByRole("combobox", { name: "Country of residence" }).click();
-      await page.getByPlaceholder("Search...").fill("GB");
-      await expect(page.getByRole("option", { name: "United Kingdom" })).toBeVisible();
-      await page.getByRole("option", { name: "United Kingdom" }).click();
-      await expect(page.getByRole("combobox", { name: "Country of residence" })).toHaveText("United Kingdom");
-    });
-
     test("allows confirming tax information", async ({ page }) => {
       await userComplianceInfosFactory.create({ userId: user.id });
       await login(page, user);

frontend/components/ComboBox.tsx

@@ -50,7 +50,6 @@ const ComboBox = ({
                 <CommandItem
                   key={option.value}
                   value={option.value}
-                  keywords={[option.label]}
                   onSelect={(currentValue) => {
                     if (multiple) {
                       onChange(