playground: Remove release.js.vom dependencies.

Change-Id: I8784a68697401d1538b37cdfa9384529e0754d74
diff --git a/client/bundles/fortune/ex0_js/server.js b/client/bundles/fortune/ex0_js/server.js
index fb61527..32d9ee9 100644
--- a/client/bundles/fortune/ex0_js/server.js
+++ b/client/bundles/fortune/ex0_js/server.js
@@ -1,6 +1,6 @@
 // index=1
 var veyron = require('veyron');
-var vom = require('vom');
+var vom = veyron.vom;
 
 /**
  * 1) Implement a simple fortune service
diff --git a/go/src/playground/Dockerfile b/go/src/playground/Dockerfile
index 6b52e14..bec57d6 100644
--- a/go/src/playground/Dockerfile
+++ b/go/src/playground/Dockerfile
@@ -32,15 +32,10 @@
 # is publicly visible in NPM.
 # NOTE(sadovsky): NPM is flaky. If any of the NPM commands below fail, simply
 # retry them.
-WORKDIR /usr/local/vanadium/release/javascript/vom
-RUN $VANADIUM_ROOT/environment/cout/node/bin/npm install --production
-RUN $VANADIUM_ROOT/environment/cout/node/bin/npm link
 WORKDIR /usr/local/vanadium/release/javascript/core
 RUN $VANADIUM_ROOT/environment/cout/node/bin/npm install --production
-RUN $VANADIUM_ROOT/environment/cout/node/bin/npm link vom
 RUN $VANADIUM_ROOT/environment/cout/node/bin/npm link
 WORKDIR /home/playground
-RUN $VANADIUM_ROOT/environment/cout/node/bin/npm link vom
 RUN $VANADIUM_ROOT/environment/cout/node/bin/npm link veyron
 
 # Install Vanadium Go dependencies.
diff --git a/go/src/playground/lib/pg_test_util.sh b/go/src/playground/lib/pg_test_util.sh
index b5b55fd..629aa14 100755
--- a/go/src/playground/lib/pg_test_util.sh
+++ b/go/src/playground/lib/pg_test_util.sh
@@ -29,14 +29,9 @@
   # TODO(nlacasse): Once release/javascript/core is publicly available in npm, replace this
   # with "npm install vanadium".
 
-  pushd "${VANADIUM_ROOT}/release/javascript/vom"
-  npm link
-  popd
   pushd "${VANADIUM_ROOT}/release/javascript/core"
-  npm link vom
   npm link
   popd
-  npm link vom
   npm link veyron
 }
 
diff --git a/go/src/playground/testdata/src/pong/pong.js b/go/src/playground/testdata/src/pong/pong.js
index f9e32db..466423f 100644
--- a/go/src/playground/testdata/src/pong/pong.js
+++ b/go/src/playground/testdata/src/pong/pong.js
@@ -1,5 +1,5 @@
 var veyron = require('veyron');
-var vom = require('vom');
+var vom = veyron.vom;
 
 var pingPongService = {
   ping: function(ctx, msg) {