Clean up coverage scripts

admin/coverage

@@ -16,7 +16,7 @@ def sh(cmd):
 
 def cleanup():
     sh('cargo clean')
-    sh("rm -rf *.gcda *.gcno cov/ && mkdir cov/")
+    sh("rm -rf *.gcda *.gcno")
 
 def run(which):
     exe = filter(lambda x: '.d' not in x, glob.glob('target/debug/' + which + '-*'))[0]

admin/llvm-gcov

@@ -1,3 +1,2 @@
 #!/bin/sh -e
-echo "llvm-cov gcov $*"
 llvm-cov gcov $*