Remove installation of dreport plugin

Until phosphor-debug-collector doesn't have a proper interface to register an
external plugin at runtime, we have to embed the plugin directly to the
phosphor-debug-collector project.
The dreport plugin file can be created with --enable-dreport option of
confugure script.

Change-Id: I31c59055cba9f518b74b8c80d48d1b572d80a2e1
Signed-off-by: Artem Senichev <a.senichev@yadro.com>
diff --git a/configure.ac b/configure.ac
index 6c9f93c..8a0dec1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -80,13 +80,13 @@
 
 # dreport integration
 AC_ARG_ENABLE([dreport],
-              [AS_HELP_STRING([--enable-dreport], [enable dreport integration as plugin [yes]])],
+              [AS_HELP_STRING([--enable-dreport], [create dreport plugin script [no]])],
               [case "${enableval}" in
                  yes) dreport=true ;;
                  no)  dreport=false ;;
                  *)   AC_MSG_ERROR([bad value ${enableval} for --enable-dreport]) ;;
                esac],
-              [dreport=true])
+              [dreport=false])
 AM_CONDITIONAL(HAVE_DREPORT, test "x$dreport" = "xtrue")
 
 # Debug build configuration