Revert "Deploying Java Applications slides"

This reverts commit 5f3002505de9b3845b143dd625a683974baaf4fe.
Revert "Add How Heroku Works slides"

This reverts commit ac30de27c74f22380bb5011404ce6fd085ecc2e5.
Revert "Add Integrating Salesforce slides"

This reverts commit 9f2a9664d6c84d1cff5d6ff8f74ad421272b536f.
Revert "Add maximizing heroku slides"

This reverts commit e31f8e52c1e23322948ddff3a394215da5bea145.
Revert "Updating old markdown files"

This reverts commit 9eecad415045f006e0d231b0f2b3416fe3b05f00.
Revert "Minor slide fix on Why Heroku slides"

This reverts commit 1f6f3edde91c6f3c24f115a2c1766755233dd858.
Revert "Updated Why Heroku slides style"

This reverts commit 4b2f230f679176b6612caec07a9b74b8ed3f9a5f.
Revert "Add Systems Setup slides"

This reverts commit d2922dfc5a1b07cbb51926682c50fb6c1bd5d2ef.