diff --git a/doc/gperf_11.html b/doc/gperf_11.html
deleted file mode 100644
index 27762bd..0000000
--- a/doc/gperf_11.html
+++ /dev/null
@@ -1,82 +0,0 @@
-
-
-
-
-Perfect Hash Function Generator - Concept Index
-
-
-Go to the first, previous, next, last section, table of contents.
-
-
-
-
-
-
-
%
-
-`%%'
-`%{'
-`%}'
-
-a
-
-Array name
-
-b
-
-Bugs
-
-c
-
-Class name
-
-d
-
-Declaration section
-Delimiters
-Duplicates
-
-f
-
-Format
-Functions section
-
-h
-
-hash
-hash table
-
-i
-
-in_word_set
-Initializers
-
-j
-
-Jump value
-
-k
-
-Keywords section
-
-m
-
-Minimal perfect hash functions
-
-n
-
-NUL
-
-s
-
-Slot name
-Static search structure
-switch, switch
-
-
-
-
-Go to the first, previous, next, last section, table of contents.
-
-