Cleanup WORKSPACE file from extraneous load statements (#19)

## What is the goal of this PR?

In order for keeping codebase clean and maintainable, extraneous dependencies should not be present `WORKSPACE`

## What are the changes implemented in this PR?

Remove loading external repos that are not needed

BUILD

@@ -23,7 +23,7 @@ load("@graknlabs_dependencies//tool/checkstyle:rules.bzl", "checkstyle_test")
 
 java_library(
     name = "common",
-    srcs = glob(["**/*.java"]),
+    srcs = glob(["concurrent/*.java", "test/server/*.java", "util/*.java"]),
     visibility = ["//visibility:public"],
     tags = ["maven_coordinates=io.grakn.common:grakn-common:{pom_version}"],
 )

WORKSPACE

@@ -23,29 +23,10 @@ workspace(name = "graknlabs_common")
 load("//dependencies/graknlabs:repositories.bzl", "graknlabs_dependencies")
 graknlabs_dependencies()
 
-# Load Antlr
-load("@graknlabs_dependencies//builder/antlr:deps.bzl", antlr_deps = "deps")
-antlr_deps()
-load("@rules_antlr//antlr:deps.bzl", "antlr_dependencies")
-antlr_dependencies()
-
 # Load Bazel
-load("@graknlabs_dependencies//builder/bazel:deps.bzl","bazel_common", "bazel_deps", "bazel_toolchain")
-bazel_common()
-bazel_deps()
+load("@graknlabs_dependencies//builder/bazel:deps.bzl", "bazel_toolchain")
 bazel_toolchain()
 
-# Load gRPC
-load("@graknlabs_dependencies//builder/grpc:deps.bzl", grpc_deps = "deps")
-grpc_deps()
-load("@com_github_grpc_grpc//bazel:grpc_deps.bzl",
-com_github_grpc_grpc_deps = "grpc_deps")
-com_github_grpc_grpc_deps()
-load("@stackb_rules_proto//java:deps.bzl", "java_grpc_compile")
-java_grpc_compile()
-load("@stackb_rules_proto//node:deps.bzl", "node_grpc_compile")
-node_grpc_compile()
-
 # Load Java
 load("@graknlabs_dependencies//builder/java:deps.bzl", java_deps = "deps")
 java_deps()
@@ -58,12 +39,6 @@ load("@io_bazel_rules_kotlin//kotlin:kotlin.bzl", "kotlin_repositories", "kt_reg
 kotlin_repositories()
 kt_register_toolchains()
 
-# Load NodeJS
-load("@graknlabs_dependencies//builder/nodejs:deps.bzl", nodejs_deps = "deps")
-nodejs_deps()
-load("@build_bazel_rules_nodejs//:defs.bzl", "node_repositories")
-node_repositories()
-
 # Load Python
 load("@graknlabs_dependencies//builder/python:deps.bzl", python_deps = "deps")
 python_deps()
@@ -77,10 +52,6 @@ load("@graknlabs_dependencies_ci_pip//:requirements.bzl",
 graknlabs_dependencies_ci_pip_install = "pip_install")
 graknlabs_dependencies_ci_pip_install()
 
-# Load Docker
-load("@graknlabs_dependencies//distribution/docker:deps.bzl", docker_deps = "deps")
-docker_deps()
-
 # Load Checkstyle
 load("@graknlabs_dependencies//tool/checkstyle:deps.bzl", checkstyle_deps = "deps")
 checkstyle_deps()
@@ -120,18 +91,9 @@ git_repository(
 load("@io_bazel_skydoc//:setup.bzl", "skydoc_repositories")
 skydoc_repositories()
 
-load("@io_bazel_rules_sass//:package.bzl", "rules_sass_dependencies")
-rules_sass_dependencies()
-
-load("@build_bazel_rules_nodejs//:defs.bzl", "node_repositories")
-node_repositories()
-
-load("@io_bazel_rules_sass//:defs.bzl", "sass_repositories")
-sass_repositories()
-
 load("@graknlabs_bazel_distribution//common:dependencies.bzl", "bazelbuild_rules_pkg")
 bazelbuild_rules_pkg()
-
+#
 load("@rules_pkg//:deps.bzl", "rules_pkg_dependencies")
 rules_pkg_dependencies()