revert: "fix(pipelines): using the same source (s3, connection, or codecommit) in a pipeline causes duplicate id error" (#27700)

Reverts #27602

Author: colifran

packages/@aws-cdk-testing/framework-integ/test/pipelines/test/integ.newpipeline-with-file-system-locations.js.snapshot/PipelinesFileSystemLocations.assets.json

@@ -805,7 +805,7 @@
         },
         "OutputArtifacts": [
          {
-          "Name": "c81125c577cddc5477d274144695873cfd8965e6a0_key_Source"
+          "Name": "c81125c577cddc5477d274144695873cfd8965e6a0_Source"
          }
         ],
         "RoleArn": {
@@ -835,7 +835,7 @@
         },
         "InputArtifacts": [
          {
-          "Name": "c81125c577cddc5477d274144695873cfd8965e6a0_key_Source"
+          "Name": "c81125c577cddc5477d274144695873cfd8965e6a0_Source"
          }
         ],
         "Name": "Synth",