Remove GWT UI

This change also discontinues this Maven artifact:

  <groupId>com.google.gerrit</groupId>
  <artifactId>gerrit-plugin-gwtui</artifactId>

Bug: Issue 6908
Change-Id: I767118ba4a70f288b8f56686ab90aefa059912bb
diff --git a/Documentation/dev-bazel.txt b/Documentation/dev-bazel.txt
index aa8609a..efa17da 100644
--- a/Documentation/dev-bazel.txt
+++ b/Documentation/dev-bazel.txt
@@ -92,7 +92,7 @@
 
 === Gerrit Development WAR File
 
-To build the Gerrit web application that includes the PolyGerrit UI:
+To build the Gerrit web application:
 
 ----
   bazel build gerrit
@@ -111,8 +111,8 @@
 [[release]]
 === Gerrit Release WAR File
 
-To build the Gerrit web application that includes the GWT UI, the
-PolyGerrit UI, core plugins and documentation:
+To build the Gerrit web application that includes the PolyGerrit UI,
+core plugins and documentation:
 
 ----
   bazel build release
@@ -126,7 +126,7 @@
 
 === Headless Mode
 
-To build Gerrit in headless mode, i.e. without the PolyGerrit and GWT
+To build Gerrit in headless mode, i.e. without the PolyGerrit UI:
 Web UI:
 
 ----
@@ -141,7 +141,7 @@
 
 === Extension and Plugin API JAR Files
 
-To build the extension, plugin and GWT API JAR files:
+To build the extension, plugin and acceptance-framework JAR files:
 
 ----
   bazel build api
@@ -154,7 +154,8 @@
   bazel-genfiles/api.zip
 ----
 
-Install {extension,plugin,gwt}-api to the local maven repository:
+Install {extension,plugin,acceptance-framework}-api to the local
+maven repository:
 
 ----
   tools/maven/api.sh install