[azure-iot-sdk-c] Update public-preview feature to branch with fixed …

…telemetry (microsoft#9059)

* Bring sha to public-preview-pnp post telemetry explosion

* Updating to latest code

* Update version

* Pointing to proper public-preview branch

* Pointing to SHA post public-preview branch update

* [azure-iot-sdk-c] Remove unused patch file

ports/azure-iot-sdk-c/CONTROL

@@ -1,5 +1,5 @@
 Source: azure-iot-sdk-c
-Version: 2019-10-11.2
+Version: 2019-11-21.1
 Build-Depends: azure-uamqp-c, azure-umqtt-c, azure-c-shared-utility, parson, azure-uhttp-c, azure-macro-utils-c, umock-c
 Description: A C99 SDK for connecting devices to Microsoft Azure IoT services 
 

ports/azure-iot-sdk-c/portfile.cmake

@@ -6,10 +6,10 @@ if("public-preview" IN_LIST FEATURES)
     vcpkg_from_github(
         OUT_SOURCE_PATH SOURCE_PATH
         REPO Azure/azure-iot-sdk-c
-        REF d1cdf78b5160af8e08354e102a6b96395eee79e1
-        SHA512 0efbfc19e5eef4831b55ded0e8d88e83194bc0f26886841ddc83405c15b7f1bae983e22dc569e22846acd78b843b9e7492883b7c502f4eed92ff80ef45a9942d
+        REF cb2e8d390df56ffa31d08ca0a79ab58ff96160cc
+        SHA512 6798b17d6768b3ccbd0eb66719b50f364cd951736eb71110e2dc9deca054a1566ff88b9e8c5e9b52536e4308cad6cd3cbebff3282c123083e3afaee5535e724b
         HEAD_REF public-preview
-        PATCHES improve-external-deps.patch cmake-hsm-option.patch
+        PATCHES improve-external-deps.patch
     )
 else()
     vcpkg_from_github(