testing/crystal: remove depends on libressl

It currently doesn't work with LibreSSL anyway.

testing/crystal/APKBUILD

@@ -10,9 +10,8 @@ pkgdesc="The Crystal Programming Language"
 url="https://crystal-lang.org/"
 arch="x86_64"
 license="Apache-2.0"
-depends="gc-dev libatomic_ops libevent-dev libressl-dev libxml2-dev
-	gcc gmp-dev pcre-dev yaml-dev"
-checkdepends="readline-dev zlib-dev"
+depends="gc-dev libatomic_ops libevent-dev libxml2-dev gcc gmp-dev pcre-dev yaml-dev"
+checkdepends="openssl-dev readline-dev zlib-dev"
 makedepends="llvm$_llvmver-dev ${BUILD_STATIC:+"llvm$_llvmver-static"}"
 subpackages="$pkgname-doc
 	$pkgname-bash-completion:bashcomp:noarch