ecj: wrappers should unset JAVA_HOME

Otherwise it will work properly if package openjdk-17 is installed.

Issue https://github.com/termux/termux-packages/issues/7233

packages/ecj/build.sh

@@ -6,7 +6,7 @@ TERMUX_PKG_MAINTAINER="@termux"
 _VERSION=4.12
 _DATE=201906051800
 TERMUX_PKG_VERSION=1:${_VERSION}
-TERMUX_PKG_REVISION=3
+TERMUX_PKG_REVISION=4
 TERMUX_PKG_SRCURL=http://archive.eclipse.org/eclipse/downloads/drops${_VERSION:0:1}/R-${_VERSION}-${_DATE}/ecj-${_VERSION}.jar
 TERMUX_PKG_SHA256=69dad18a1fcacd342a7d44c5abf74f50e7529975553a24c64bce0b29b86af497
 TERMUX_PKG_PLATFORM_INDEPENDENT=true

packages/ecj/ecj

@@ -1,5 +1,7 @@
 #!/bin/sh
 
+unset JAVA_HOME
+
 # -proc:none to disable annotation processing.
 # -7 for java 1.7 compatibility.
 dalvikvm -Xmx256m \

packages/ecj/ecj-24

@@ -1,5 +1,7 @@
 #!/bin/sh
 
+unset JAVA_HOME
+
 # -proc:none to disable annotation processing.
 # -7 for java 1.7 compatibility.
 dalvikvm -Xmx256m \