Remove FrameworkSampleSource.

ExtractorSampleSource covers almost all use cases (except for AMR, AVI and
legacy Widevine). The FLAC extension must be compiled for support for FLAC
extraction.

FrameworkSampleSource has device-specific issues, makes blocking calls to the
underlying MediaExtractor, and does not provide much control over buffering.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=124850102

library/src/main/java/com/google/android/exoplayer/CryptoInfo.java

@@ -18,7 +18,6 @@ package com.google.android.exoplayer;
 import com.google.android.exoplayer.util.Util;
 
 import android.annotation.TargetApi;
-import android.media.MediaExtractor;
 
 /**
  * Compatibility wrapper around {@link android.media.MediaCodec.CryptoInfo}.
@@ -73,22 +72,6 @@ public final class CryptoInfo {
   }
 
   /**
-   * Equivalent to {@link MediaExtractor#getSampleCryptoInfo(android.media.MediaCodec.CryptoInfo)}.
-   *
-   * @param extractor The extractor from which to retrieve the crypto information.
-   */
-  @TargetApi(16)
-  public void setFromExtractorV16(MediaExtractor extractor) {
-    extractor.getSampleCryptoInfo(frameworkCryptoInfo);
-    numSubSamples = frameworkCryptoInfo.numSubSamples;
-    numBytesOfClearData = frameworkCryptoInfo.numBytesOfClearData;
-    numBytesOfEncryptedData = frameworkCryptoInfo.numBytesOfEncryptedData;
-    key = frameworkCryptoInfo.key;
-    iv = frameworkCryptoInfo.iv;
-    mode = frameworkCryptoInfo.mode;
-  }
-
-  /**
    * Returns an equivalent {@link android.media.MediaCodec.CryptoInfo} instance.
    * <p>
    * Successive calls to this method on a single {@link CryptoInfo} will return the same instance.

library/src/main/java/com/google/android/exoplayer/Format.java

@@ -442,18 +442,6 @@ public final class Format implements Parcelable {
     return frameworkMediaFormat;
   }
 
-  /**
-   * Sets the {@link MediaFormat} returned by {@link #getFrameworkMediaFormatV16()}.
-   *
-   * @deprecated This method only exists for FrameworkSampleSource, which is itself deprecated.
-   * @param frameworkSampleFormat The format.
-   */
-  @Deprecated
-  @TargetApi(16)
-  /* package */ final void setFrameworkMediaFormatV16(MediaFormat frameworkSampleFormat) {
-    this.frameworkMediaFormat = frameworkSampleFormat;
-  }
-
   @Override
   public String toString() {
     return "Format(" + id + ", " + containerMimeType + ", " + sampleMimeType + ", " + bitrate + ", "