Remove "latest" from matrix spec

Author: vincentkam

evergreen/evergreen.yml

@@ -473,14 +473,14 @@ buildvariants:
      - name: test
 
 - matrix_name: "tests-zlib-compression"
-  matrix_spec: { compressor : "zlib", auth: "noauth", ssl: "nossl", version: ["3.6", "4.0", "4.2", "latest"], topology: "standalone", os: "*" }
+  matrix_spec: { compressor : "zlib", auth: "noauth", ssl: "nossl", version: ["3.6", "4.0", "4.2"], topology: "standalone", os: "*" }
   display_name: "${version} ${compressor} ${topology} ${auth} ${ssl} ${os} "
   tags: ["tests-variant"]
   tasks:
      - name: "test"
 
 - matrix_name: "tests-snappy-compression"
-  matrix_spec: { compressor : "snappy", auth: "noauth", ssl: "nossl", version: ["3.6", "4.0", "4.2", "latest"], topology: "standalone", os: "*" }
+  matrix_spec: { compressor : "snappy", auth: "noauth", ssl: "nossl", version: ["3.6", "4.0", "4.2"], topology: "standalone", os: "*" }
   display_name: "${version} ${compressor} ${topology} ${auth} ${ssl} ${os} "
   tags: ["tests-variant"]
   tasks: