remove cargo cache for now, not enough disk space on my poverty ci vps

.drone.yml

@@ -12,8 +12,6 @@ steps:
   volumes:
   - name: cache
     path: /usr/local/cargo
-  - name: target-cache
-    path: /drone/src/target
   commands:
   - cargo build
 - name: clippy!
@@ -21,8 +19,6 @@ steps:
   volumes:
   - name: cache
     path: /usr/local/cargo
-  - name: target-cache
-    path: /drone/src/target
   commands:
   - cargo clippy -- --deny warnings
 - name: test
@@ -30,8 +26,6 @@ steps:
   volumes:
   - name: cache
     path: /usr/local/cargo
-  - name: target-cache
-    path: /drone/src/target
   commands:
   - cargo test --jobs 1