amp: fix build

The termbox-sys patch can be dropped as the crate is no longer
used. And we need to bump the openssl-sys crate for compatibility
with newer libressl.

srcpkgs/amp/patches/termbox-fix.patch

@@ -1,10 +0,0 @@
-Status: submitted upstream https://github.com/gchp/termbox-sys/pull/20
---- Cargo.toml
-+++ Cargo.toml
-@@ -43,3 +43,6 @@ bench = []
- name = "draw_buffer"
- path = "benches/view/draw_buffer.rs"
- harness = false
-+
-+[patch.crates-io]
-+termbox-sys = { git = 'https://github.com/q66/termbox-sys' }

srcpkgs/amp/template

@@ -16,5 +16,5 @@ checksum=3529e9aa51df80ff3bd9db340423bf0975b58473fc0a307ea6eee799089ee2e2
 export LIBGIT2_SYS_USE_PKG_CONFIG=1
 
 pre_build() {
-	cargo update --package openssl-sys --precise 0.9.49
+	cargo update --package openssl-sys --precise 0.9.53
 }