[metacity] build: remove unused CPPFLAGS

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 0d8c4968712011c221b76c1309869e8e877efcd9
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Thu Mar 16 15:31:11 2017 +0200

    build: remove unused CPPFLAGS

 configure.ac    |    3 ---
 src/Makefile.am |    4 ----
 2 files changed, 0 insertions(+), 7 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 21f583e..3fae736 100644
--- a/configure.ac
+++ b/configure.ac
@@ -359,9 +359,6 @@ fi
 
 AM_CONDITIONAL(HAVE_SM, test "$found_sm" = "yes") 
 
-HOST_ALIAS=$host_alias
-AC_SUBST(HOST_ALIAS)
-
 AC_PATH_PROG(ZENITY, zenity, no)
 if test x"$ZENITY" = xno; then
   AC_MSG_ERROR([zenity not found in your path - needed for dialogs])
diff --git a/src/Makefile.am b/src/Makefile.am
index 77bce29..d0446fd 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -3,11 +3,7 @@ NULL =
 SUBDIRS = tools
 
 AM_CPPFLAGS = \
-       -DMETACITY_LIBEXECDIR=\"$(libexecdir)\" \
-       -DHOST_ALIAS=\"@HOST_ALIAS@\" \
        -DMETACITY_LOCALEDIR=\""$(localedir)"\" \
-       -DMETACITY_PKGDATADIR=\"$(pkgdatadir)\" \
-       -DMETACITY_DATADIR=\"$(datadir)\" \
        -DG_LOG_DOMAIN=\"metacity\" \
        -DG_LOG_USE_STRUCTURED=1 \
        -DSN_API_NOT_YET_FROZEN=1 \