Redundant JDK install instructions

[breyed]

The MAUI installation for Android instructions for VS Code direct the user to install the JDK twice:

1. First, step 1 instructs the user to install Microsoft OpenJDK 17.
2. Then, step 2 recommends using the InstallAndroidDependencies target. According to that target's docs, it "installs Java to the specified absolute path" specified as JavaSdkPath.

The instructions appear to call for installing the JDK in two different ways. If so, they should be streamlined, probably by removing step 1. Otherwise, the docs for JavaSdkDirectory="<JavaSdkPath>" should be clarified as to how that property differs from step 1.