Revert "Add additional note for SSL support"

This reverts commit 86ec676408c15730c43a322141f2917fedbd1aad.

README.md

@@ -187,10 +187,10 @@ auto res = cli.Get("/range/32", headers);
 // res->body should be "bcdefghijk".
 ```
 
-OpenSSL 1.0.2 Support
----------------------
+OpenSSL Support
+---------------
 
-SSL (OpenSSL 1.0.2) support is available with `CPPHTTPLIB_OPENSSL_SUPPORT`. `libssl` and `libcrypto` should be linked.
+SSL support is available with `CPPHTTPLIB_OPENSSL_SUPPORT`. `libssl` and `libcrypto` should be linked.
 
 ```c++
 #define CPPHTTPLIB_OPENSSL_SUPPORT