Disable icu_le shaper

Will add a way to enable it later.

configure.ac

diff --git a/configure.ac b/configure.ac
index b428c13..f147435 100644
--- a/configure.ac
+++ b/configure.ac
@@ -204,7 +204,8 @@
 
 dnl ==========================================================================
 
-PKG_CHECK_MODULES(ICU_LE, icu-le icu-uc, have_icu_le=true, have_icu_le=false)
+have_icu_le=false
+dnl PKG_CHECK_MODULES(ICU_LE, icu-le icu-uc, have_icu_le=true)
 if $have_icu_le; then
 	AC_DEFINE(HAVE_ICU_LE, 1, [Have ICU Layout Engine library])
 fi