docs: remove studio proguard settings from play services

<h2>In this document</h2>

<ol>

  <li><a href="#Setup">Add Google Play Services to Your Project</a></li>

  <li><a href="#Proguard">Create a Proguard Exception</a></li>

  <li><a href="#Proguard">Create a ProGuard Exception</a></li>

  <li><a href="#ensure">Ensure Devices Have the Google Play services APK</a></li>

</ol>

</table>

<p class="note"><strong>Note:</strong> ProGuard directives are included in the Play services

client libraries to preserve the required classes. The

<a href="{@docRoot}tools/building/plugin-for-gradle.html">Android Plugin for Gradle</a>

automatically appends ProGuard configuration files in an AAR (Android ARchive) package and appends

that package to your ProGuard configuration. During project creation, Android Studio automatically

creates the ProGuard configuration files and <code>build.gradle</code> properties for ProGuard use.

To use ProGuard with Android Studio, you must enable the ProGuard setting in your

<code>build.gradle</code>  <code>buildTypes</code>. For more information, see the

<a href="{@docRoot}tools/help/proguard.html">ProGuard</a> topic. </p>

</div><!-- end studio -->

<div class="select-ide eclipse">

you can begin developing features with the

<a href="{@docRoot}reference/gms-packages.html">Google Play services APIs</a>.</p>

<h2 id="Proguard">Create a ProGuard Exception</h2>

<p>To prevent <a href="{@docRoot}tools/help/proguard.html">ProGuard</a> from stripping away

required classes, add the following lines in the

<code>&lt;project_directory&gt;/proguard-project.txt</code> file:

<pre>

-keep class * extends java.util.ListResourceBundle {

    protected Object[][] getContents();

}

-keep public class com.google.android.gms.common.internal.safeparcel.SafeParcelable {

    public static final *** NULL;

}

-keepnames @com.google.android.gms.common.annotation.KeepName class *

-keepclassmembernames class * {

    @com.google.android.gms.common.annotation.KeepName *;

}

-keepnames class * implements android.os.Parcelable {

    public static final ** CREATOR;

}

</pre>

</div><!-- end eclipse -->

<div class="select-ide other">

you can begin developing features with the

<a href="{@docRoot}reference/gms-packages.html">Google Play services APIs</a>.</p>

</div><!-- end other -->

<h2 id="Proguard">Create a Proguard Exception</h2>

}

</pre>

<p class="note"><strong>Note:</strong> When using Android Studio, you must add Proguard

to your <code>build.gradle</code> file's build types. For more information, see the

<a href="http://tools.android.com/tech-docs/new-build-system/user-guide#TOC-Running-ProGuard"

>Gradle Plugin User Guide</a>.

</ol>

</div><!-- end other -->

<h2 id="ensure">Ensure Devices Have the Google Play services APK</h2>