deleting mutation axis, replaced by morph

diff --git a/Lib/axisregistry/data/mutation.textproto b/Lib/axisregistry/data/mutation.textproto
deleted file mode 100644 (file)
index 68ca8bc..0000000
--- a/Lib/axisregistry/data/mutation.textproto
+++ /dev/null
@@ -1,17 +0,0 @@
-# from Kablammo 
-tag: "MUTA"
-display_name: "Mutation"
-min_value: 0
-default_value: 0
-max_value: 60
-precision: 0
-fallback {
-  name: "Default"
-  value: 0
-}
-fallback_only: false
-description:
-  "As the mutation axis progresses, in seconds, "
-  "letterforms morph — changing in ways that don't change "
-  "their other attributes like width or weight."
-