Remove the Android 2.x/3.x support code.

The Android 4.x+ code has changed a lot since the initial import
of the eyes-free codebase. A lot of bug fixes and improvements
have been made to it.

The eyes-free codebase had two different code paths:
  *  one for ICS (4.0) or later, using the Java-based TTS APIs
     provided by the Android platform;
  *  one for pre-ICS using an internal C++-based TTS API.

Thus, any bug fixes or improvements would have to be done to both
code bases if Android 2.x/3.x support is required. This is not
maintainable.

If pre-ICS support is to be re-added in the future, the plan will
be to:
  *  forward the C++-based APIs to the Java-based APIs via a
     compatibility layer;
  *  use a compatibility layer (Android Support Library?) for using
     the ICS settings API on pre-ICS.

android/src/com/reecedunn/espeak/eSpeak.java

@@ -1,43 +0,0 @@
-/*
- * Copyright (C) 2011 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.reecedunn.espeak;
-
-import android.app.Activity;
-import android.os.Bundle;
-
-/*
- * The Java portion of this TTS plugin engine app does nothing.
- * This activity is only here so that the native code can be
- * wrapped up inside an apk file.
- *
- * The file path structure convention is that the native library
- * implementing TTS must be a file placed here:
- * /data/data/<PACKAGE_NAME>/lib/libtts<ACTIVITY_NAME_LOWERCASED>.so
- * Example:
- * /data/data/com.reecedunn.espeak/lib/libttsespeak.so
- */
-
-public class eSpeak extends Activity {
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        // The Java portion of this does nothing.
-        // This activity is only here so that everything
-        // can be wrapped up inside an apk file.
-        finish();
-    }
-}

android/src/com/reecedunn/espeak/providers/SettingsProvider.java

@@ -1,94 +0,0 @@
-/*
- * Copyright (C) 2011 Google Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.reecedunn.espeak.providers;
-
-import com.reecedunn.espeak.CheckVoiceData;
-
-import android.content.ContentProvider;
-import android.content.ContentValues;
-import android.database.Cursor;
-import android.database.MatrixCursor;
-import android.net.Uri;
-
-import java.io.File;
-
-/**
- * Provides the "engineConfig" parameter for the legacy (pre-ICS) TTS API.
- * 
- * @author alanv@google.com (Alan Viverette)
- */
-public class SettingsProvider extends ContentProvider {
-    private class SettingsCursor extends MatrixCursor {
-        private String settings;
-
-        public SettingsCursor(String[] columnNames) {
-            super(columnNames);
-        }
-
-        public void putSettings(String settings) {
-            this.settings = settings;
-        }
-
-        @Override
-        public int getCount() {
-            return 1;
-        }
-
-        @Override
-        public String getString(int column) {
-            return settings;
-        }
-    }
-
-    @Override
-    public int delete(Uri uri, String selection, String[] selectionArgs) {
-        return 0;
-    }
-
-    @Override
-    public String getType(Uri uri) {
-        return null;
-    }
-
-    @Override
-    public Uri insert(Uri uri, ContentValues values) {
-        return null;
-    }
-
-    @Override
-    public boolean onCreate() {
-        return true;
-    }
-
-    @Override
-    public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
-            String sortOrder) {
-        final File dataPath = CheckVoiceData.getDataPath(getContext());
-        final String[] dummyColumns = {
-                "", ""
-        };
-        final SettingsCursor cursor = new SettingsCursor(dummyColumns);
-        cursor.putSettings(dataPath.getParent());
-        return cursor;
-    }
-
-    @Override
-    public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
-        return 0;
-    }
-
-}