Eliminate .travis.yml hacks for unregistered packages

.travis.yml

@@ -9,11 +9,9 @@ julia:
 notifications:
   email: false
 # uncomment the following lines to override the default test script
-script:
- - if [[ -a .git/shallow ]]; then git fetch --unshallow; fi
- # For the time being, clone unregistered packages
- - julia -e 'Pkg.clone("https://github.com/JuliaImages/ImageCore.jl")'
- - julia -e 'Pkg.clone(pwd()); Pkg.build("ImageFiltering"); Pkg.test("ImageFiltering"; coverage=true)'
+# script:
+#  - if [[ -a .git/shallow ]]; then git fetch --unshallow; fi
+#  - julia -e 'Pkg.clone(pwd()); Pkg.build("ImageFiltering"); Pkg.test("ImageFiltering"; coverage=true)'
 after_success:
   # push coverage results to Codecov
   - julia -e 'cd(Pkg.dir("ImageFiltering")); Pkg.add("Coverage"); using Coverage; Codecov.submit(Codecov.process_folder())'