remove TestAwsCryptographicMaterialProviders snapshot dependency

Author: RitvikKapila

pom.xml

@@ -71,14 +71,6 @@
             <version>1.6.0</version>
         </dependency>
 
-        <dependency>
-            <groupId>software.amazon.cryptography</groupId>
-            <artifactId>TestAwsCryptographicMaterialProviders</artifactId>
-            <version>1.0-SNAPSHOT</version>
-            <optional>true</optional>
-            <scope>test</scope>
-        </dependency>
-
         <dependency>
             <groupId>org.bouncycastle</groupId>
             <artifactId>bcprov-jdk18on</artifactId>