Remove un-needed shell files

Signed-off-by: Alex Ellis <alexellis2@gmail.com>

sample-functions/ChangeColorIntent/build.sh

-#!/bin/sh
-
-docker build -t functions/alexa-leds:latest .

sample-functions/NodeHelloEnv/build.sh

-#!/bin/bash
-
-docker build --squash -t functions/nodehelloenv .
\ No newline at end of file

sample-functions/NodeInfo/build.sh

-#!/bin/bash
-
-docker build --squash -t functions/nodeinfo .

sample-functions/ResizeImageMagick/build.sh

-#!/bin/sh
-
-docker build -t functions/resizer .
-
-echo Built functions/resizer
-

sample-functions/SentimentAnalysis/build.sh

-#!/bin/sh
-
-echo "Building functions/sentimentanalysis"
-docker build -t functions/sentimentanalysis .
-
-

sample-functions/WordCountFunction/build.sh

-#!/bin/bash
-
-docker build -t alexellis2/faas-wordcount:latest .
-