These terms do not apply to the Android source code, only the "Android SDK". This is like the difference between the JDK and source code to the Java standard class library. The SDK only contains tools for developing Android applications, like a compiler of the Java-like Android source code into Dalvik bytecode, a debugger, Eclipse plugin, etc. You can still get the sourcecode here: http://source.android.com/source/downloading.html without accepting the license you quoted.