Remove outdated comment about integral bit widths only

Author: asb

llvm/docs/LangRef.rst

@@ -15443,9 +15443,8 @@ Syntax:
 """""""
 
 This is an overloaded intrinsic. You can use
-``llvm.experimental.memset.pattern`` on any integer bit width that is an
-integral number of bytes and for different address spaces. Not all targets
-support all bit widths however.
+``llvm.experimental.memset.pattern`` on any integer bit width and for
+different address spaces. Not all targets support all bit widths however.
 
 ::