Revert "Add one-time convert-ly rule for grace beaming"

This reverts commit bbdf994d643ea96c3cabfb40fbe2f4d22af93233.

The convert-ly rule was only intended for making our documentation
somewhat snappier.  Since it is only intended to remove manual
beamings that have now become redundant, it's mainly interesting for
documentation rather than user-level documents.

diff --git a/python/convertrules.py b/python/convertrules.py
index 2202cf0d99546d17f8784751c040344683e17cca..1ab911cca2c3f576f103e3eeee8566bfcd0bc481 100644 (file)
--- a/python/convertrules.py
+++ b/python/convertrules.py
@@ -3672,12 +3672,6 @@ def conv(str):
         stderr_write (_ ("Staff-padding now controls the distance to the baseline, not the nearest point."))
     return str
 
-@rule((2, 17, 28), r'''\grace { x[ ... ] } -> \grace { x ... }''')
-def conv(str):
-    str = re.sub (r"(\\(?:grace|appoggiatura|acciaccatura|slashedGrace)\s*\{\s*(?:[()a-zA-Z',0-9.]|\\[()])*)\[([^][{}]*)\]((?:[()]|\\[()]|\s)*\})",
-                  r"\1\2\3", str)
-    return str
-
 # Guidelines to write rules (please keep this at the end of this file)
 #
 # - keep at most one rule per version; if several conversions should be done,