Remove Windows batch files

These are no longer needed as Jenkins manages building and signing

Developers who still need to run these scripts should use the
facilities provided by their IDE to run the Gradle tasks.

Windows Batch Files/Build Aether Legacy.bat

@@ -1,5 +0,0 @@
-@echo off
-title Building Aether Legacy..
-cd ..
-call gradlew.bat build
-pause

Windows Batch Files/Make Eclipse runs.bat

@@ -1,5 +0,0 @@
-@echo off
-title Making run files, and building Eclipse workspace..
-cd..
-gradlew eclipse
-pause

Windows Batch Files/Setup Decomp Workspace.bat

@@ -1,5 +0,0 @@
-@echo off
-title Setting up Decomp Workspace..
-cd ..
-call gradlew.bat setupDecompWorkspace
-pause