fix: lake: do not hash remote dep names + test

accidental leftover from a scrapped feature

src/lake/Lake/Load/Materialize.lean

@@ -67,8 +67,7 @@ def Source.materialize (src : Source) (name : String)
       manifestEntry := .path name relPkgDir
     }
   | .git url inputRev? subDir? => do
-    let tmpName := toString <| hash url
-    let relGitDir := relPkgsDir / tmpName
+    let relGitDir := relPkgsDir / name
     let repo := GitRepo.mk (wsDir / relGitDir)
     updateGitRepo repo url inputRev? name
     let rev ← repo.headRevision

src/lake/test/clone/test.sh

@@ -24,6 +24,7 @@ cd test
 
 # test git clone
 $LAKE update
+test -d lake-packages/hello
 $LAKE build
 ./build/bin/test