remove unnecessary ENV["HOME"] overwrite

Library/Formula/crystal.rb

@@ -15,7 +15,6 @@ class Crystal < Formula
 
   def install
     ENV.prepend_path "PATH", "#{Formula["node"].opt_libexec}/npm/bin"
-    ENV["HOME"] = "#{buildpath}/.brew_home"
 
     system "npm", "install"
     libexec.install Dir["*", ".crystal"]

Library/Formula/kibana.rb

@@ -15,7 +15,6 @@ class Kibana < Formula
   depends_on "node"
 
   def install
-    ENV["HOME"] = buildpath/".brew_home"
     ENV.prepend_path "PATH", "#{Formula["node"].opt_libexec}/npm/bin"
 
     system "npm", "install"

Library/Formula/node.rb

@@ -54,8 +54,6 @@ class Node < Formula
 
       # make sure npm can find node
       ENV.prepend_path "PATH", bin
-      # make sure user prefix settings in $HOME are ignored
-      ENV["HOME"] = buildpath/"home"
       # set log level temporarily for npm's `make install`
       ENV["NPM_CONFIG_LOGLEVEL"] = "verbose"
 

Library/Formula/skinny.rb

@@ -17,7 +17,6 @@ class Skinny < Formula
 
   def install
     ENV.prepend_path "PATH", "#{Formula["node"].opt_libexec}/npm/bin"
-    ENV["HOME"] = buildpath/".brew_home"
 
     if build.with? "npm-generator"
       system "npm", "install", "yo"

Library/Formula/tegh.rb

@@ -17,7 +17,6 @@ class Tegh < Formula
   def install
     if build.head?
       ENV.prepend_path "PATH", "#{Formula["node"].opt_libexec}/npm/bin"
-      ENV["HOME"] = buildpath/".brew_home"
       system "npm", "install"
     end