Remove some unneccessary dependency from build.yaml

This is the copy of the build.yaml changes from the following CL:
https://github.com/grpc/grpc/pull/4124/files#diff-5b123ecec7bf9d216a1323f790a0602a
diff --git a/tools/run_tests/sources_and_headers.json b/tools/run_tests/sources_and_headers.json
index 4cfd1c5..c3a219b 100644
--- a/tools/run_tests/sources_and_headers.json
+++ b/tools/run_tests/sources_and_headers.json
@@ -789,9 +789,7 @@
   {
     "deps": [
       "gpr", 
-      "gpr_test_util", 
-      "grpc", 
-      "grpc_test_util"
+      "grpc"
     ], 
     "headers": [], 
     "language": "c", 
@@ -885,9 +883,7 @@
   {
     "deps": [
       "gpr", 
-      "gpr_test_util", 
-      "grpc", 
-      "grpc_test_util"
+      "grpc"
     ], 
     "headers": [], 
     "language": "c", 
@@ -917,9 +913,7 @@
   {
     "deps": [
       "gpr", 
-      "gpr_test_util", 
-      "grpc", 
-      "grpc_test_util"
+      "grpc"
     ], 
     "headers": [], 
     "language": "c",