Fix lint warnings (#319)

* Fix lint errors/warnings

Fix a lot of lint errors and warnings.
Most things are automatically applied fixes done with android studio:

* externalize strings
* remove unused code / classes / layouts / imports
* migrate some fields to local variables

* Remove dead code from comments

Removed code that is commented out long ago.

* remove unused resources

* colors
* strings
* drawables
* layouts
* menus

1 files changed, 0 insertions, 30 deletions

diff --git a/app/src/main/res/layout/child_row_layout.xml b/app/src/main/res/layout/child_row_layout.xml
deleted file mode 100644
index d61586a9..00000000
--- a/app/src/main/res/layout/child_row_layout.xml
+++ /dev/null
@@ -1,30 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:orientation="vertical" android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:id="@+id/child_row_layout"
-    android:layout_marginTop="@dimen/activity_vertical_margin">
-
-        <ImageButton
-            android:id="@+id/crypto_delete_button"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:src="@drawable/ic_action_discard"
-            android:background="@drawable/red_rectangle"
-            android:layout_gravity="center_vertical"
-            android:layout_column="1"
-            android:layout_row="0"/>
-
-        <ImageButton
-            android:id="@+id/crypto_show_button"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:src="@drawable/ic_action_accounts"
-            android:background="@drawable/blue_rectangle"
-            android:layout_gravity="center_vertical"
-            android:layout_marginLeft="8dp"
-            android:layout_column="2"
-            android:layout_row="0"/>
-
-</GridLayout>
\ No newline at end of file