doxy_template: Remove obsolete TCL_SUBST
BUG=aomedia:2886
Change-Id: I5e709916824d40dc5596084d227d59e079c80a54
(cherry picked from commit 789eb082de3deb151981379f766c24ca7bfab2f9)
diff --git a/libs.doxy_template b/libs.doxy_template
index dab0ba0..6382c69 100644
--- a/libs.doxy_template
+++ b/libs.doxy_template
@@ -263,12 +263,6 @@
ALIASES =
-# This tag can be used to specify a number of word-keyword mappings (TCL only).
-# A mapping has the form "name=value". For example adding "class=itcl::class"
-# will allow you to use the command class in the itcl::class meaning.
-
-TCL_SUBST =
-
# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C sources
# only. Doxygen will then generate output that is more tailored for C. For
# instance, some of the names that are used will be different. The list of all
