chore (build): remove old facade launch scripts

The exe versions were unmaintained and gradle provides startup scripts that are much better about compatibility than we were.

facades/PC/launchScripts/run_linux.sh

@@ -1,5 +0,0 @@
-#!/bin/bash
-cd "$(dirname "$0")"
-java -Xms128m -Xmx1536m -jar libs/Terasology.jar "$@"
-
-# Alternatively use our Launcher from: https://github.com/MovingBlocks/TerasologyLauncher/releases

facades/PC/launchScripts/run_macosx.command

@@ -1,6 +0,0 @@
-#!/bin/bash
-cd "$(dirname "$0")"
-java -Xms128m -Xmx1536m -jar libs/Terasology.jar "$@"
-
-# Alternatively use our Launcher from: https://github.com/MovingBlocks/TerasologyLauncher/releases
-

facades/PC/launchScriptsSrc/LauncherTeraEd.xml

@@ -1,30 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<launch4jConfig>
-  <dontWrapJar>true</dontWrapJar>
-  <headerType>gui</headerType>
-  <jar>.\libs\Terasology.jar</jar>
-  <outfile>..\launchScripts\TeraEd.exe</outfile>
-  <errTitle></errTitle>
-  <cmdLine></cmdLine>
-  <chdir></chdir>
-  <priority>normal</priority>
-  <downloadUrl>http://java.com/download</downloadUrl>
-  <supportUrl></supportUrl>
-  <stayAlive>false</stayAlive>
-  <manifest></manifest>
-  <icon></icon>
-  <classPath>
-    <mainClass>org.terasology.editor.TeraEd</mainClass>
-    <cp>Terasology.jar</cp>
-  </classPath>
-  <jre>
-    <path></path>
-    <bundledJre64Bit>false</bundledJre64Bit>
-    <minVersion>1.8.0</minVersion>
-    <maxVersion></maxVersion>
-    <jdkPreference>preferJre</jdkPreference>
-    <runtimeBits>64/32</runtimeBits>
-    <initialHeapSize>128</initialHeapSize>
-    <maxHeapSize>1536</maxHeapSize>
-  </jre>
-</launch4jConfig>

facades/PC/launchScriptsSrc/README.MD

@@ -1,4 +0,0 @@
-
-For the sources of the normal Windows launcher, see the following repository:
-
-https://github.com/MovingBlocks/TerasologyJavaLauncher