Simplify CI steps

.drone.yml

@@ -6,25 +6,13 @@ environment:
   ZIG_VERSION: 0.13.0
 
 steps:
-  - name: setup
+  - name: build
     image: ubuntu:latest
     commands:
       - apt-get update
       - apt-get install -y openssl xz-utils wget libsdl2-dev glslang-tools spirv-tools
       - wget https://ziglang.org/download/$${ZIG_VERSION}/zig-linux-x86_64-$${ZIG_VERSION}.tar.xz
       - tar -xf zig-linux-x86_64-$${ZIG_VERSION}.tar.xz
-      - export PATH=$PATH:$(pwd)/zig-linux-x86_64-$${ZIG_VERSION}
-      - zig version
-
-  - name: check-tls
-    image: ubuntu:latest
-    commands:
-      - openssl version
-      - openssl ciphers -v | grep -i tls
-
-  - name: build
-    image: ubuntu:latest
-    commands:
       - export PATH=$PATH:$(pwd)/zig-linux-x86_64-$${ZIG_VERSION}
       - zig build