Revert "Merge pull #793: Dev Docs: New Glossary & JS Search Box"

This reverts commit e3dcf0ce1f, reversing
changes made to c71e9fdf2d.

Once again we had a broken new plugin that Travis CI and local building
didn't catch.

_data/glossary/en/public-key.yaml

@@ -1,33 +0,0 @@
----
-# This file is licensed under the MIT License (MIT) available on
-# http://opensource.org/licenses/MIT.
-
-required:
-                                           #-------------40 characters-------------#
-    title_max_40_characters_no_formatting: Public Key, ECDSA Public Key
-
-    summary_max_255_characters_no_formatting: >
-        The public portion of a keypair which can be used to verify
-        signatures made with the private portion of the keypair.
-
-    synonyms_shown_in_glossary_capitalize_first_letter:
-        - Public key
-
-optional:
-    synonyms_and_pluralizations_not_shown_in_glossary:
-        - public keys
-        - ecdsa public key
-        - ecdsa public keys
-        - secp256k1 public key
-        - pubkey
-        - pubkeys
-
-    not_to_be_confused_with_capitalize_first_letter:
-        - Private key (data from which the public key is derived)
-        - Parent key (a key used to create child keys, not necessarily a public key)
-
-    links_html_or_markdown_style_capitalize_first_letter:
-        - "[Public key](/en/developer-guide#term-public-key) --- Bitcoin.org Developer Guide"
-        - "[What is a public key?](http://bitcoin.stackexchange.com/q/4675) --- Bitcoin StackExchange"
-
----