Remove duplicate LAUNCHER declaration

[wosys]

There's no need to declare in samples' manifest.
Otherwise, it will create more icons in launcher.

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[wosys]

Hi @tjohns @bentrengrove @javadude @tnorbye ,

Could you please help me review this PR.
I see #275 , maybe it will refactor the architecture.
Then this PR may not needed then?

[javadude]

Good catch; thanks! This will simplify the user experience.

However, the entire <intent-filter> should be removed for these, not just the <category>. For example

    <activity
        android:name=".CallNotificationSample"
        android:launchMode="singleTop"
        android:exported="true">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

should become

    <activity
        android:name=".CallNotificationSample"
        android:launchMode="singleTop"
        android:exported="true"/>

[javadude]

I'm updating the build.yaml in PR #277 to move to the required upload-artifact@v4. Once merged, you'll need to merge in the change for this build to pass, then we can merge this PR.

[javadude]

The build update was merged. Please merge main into your branch

[javadude]

LGTM

[yrezgui]

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