Drop 1.0.0 (#3312)

* delete the 1.0.0 support

* drop the version check

* drop the AES-CTR stuff

* Update the example

* openssl truncates for us now

* delete unused test

* unused imports

* Remove a bunch of conditional bindings for NPN

* no more 1.0.0 builders

* libressl fix

* update the docs

* remove dead branches

* oops

* this is a word, damnit

* spelling

* try removing this

* this test is not needed

* unused import
diff --git a/docs/hazmat/bindings/openssl.rst b/docs/hazmat/bindings/openssl.rst
index 482cfaf..ac65aa9 100644
--- a/docs/hazmat/bindings/openssl.rst
+++ b/docs/hazmat/bindings/openssl.rst
@@ -6,7 +6,7 @@
 .. currentmodule:: cryptography.hazmat.bindings.openssl.binding
 
 These are `CFFI`_ bindings to the `OpenSSL`_ C library. Cryptography supports
-OpenSSL version ``1.0.0`` and greater.
+OpenSSL version 1.0.1 and greater.
 
 .. class:: cryptography.hazmat.bindings.openssl.binding.Binding()