RFR: 8236448: Remove unused and repair broken Android/Dalvik code

[Johan Vos]

This allows to build the JavaFX jars and native libraries for Android devices

-------------

Commits:
 - 504a2440: fix trailing whitespace
 - 97a3f14f: Fix for #8236448

Changes: https://git.openjdk.java.net/jfx/pull/75/files
 Webrev: https://webrevs.openjdk.java.net/jfx/75/webrev.00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8236448
  Stats: 1039 lines in 14 files changed: 315 ins; 615 del; 109 mod
  Patch: https://git.openjdk.java.net/jfx/pull/75.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx pull/75/head:pull/75

PR: https://git.openjdk.java.net/jfx/pull/75