Remove residual tiny stack from buildpack.toml

[#169916770]

Author: mdelillo

buildpack.toml

@@ -17,7 +17,7 @@ api = "0.2"
     sha256 = "34293da6266f2aae9690d59c2d764056053ff7eebc56b80b8df05010c3da9343"
     source = "https://github.com/yarnpkg/yarn/releases/download/v1.19.1/yarn-v1.19.1.tar.gz"
     source_sha256 = "34293da6266f2aae9690d59c2d764056053ff7eebc56b80b8df05010c3da9343"
-    stacks = ["io.buildpacks.stacks.bionic", "org.cloudfoundry.stacks.cflinuxfs3", "org.cloudfoundry.stacks.tiny"]
+    stacks = ["io.buildpacks.stacks.bionic", "org.cloudfoundry.stacks.cflinuxfs3"]
     uri = "https://buildpacks.cloudfoundry.org/dependencies/yarn/yarn-1.19.1-any-stack-34293da6.tar.gz"
     version = "1.19.1"