Combine server tests into one test target BufferHubServer_test

Bug: 112940221
Test: BufferHubServer_test
Change-Id: Ie775690c7e1b4be7d39282ef067adc21e52b1955
diff --git a/services/bufferhub/tests/Android.bp b/services/bufferhub/tests/Android.bp
index bf65469..e565374 100644
--- a/services/bufferhub/tests/Android.bp
+++ b/services/bufferhub/tests/Android.bp
@@ -1,8 +1,11 @@
 cc_test {
-    name: "BufferNode_test",
-    srcs: ["BufferNode_test.cpp"],
+    name: "BufferHubServer_test",
+    srcs: [
+        "BufferNode_test.cpp",
+        "BufferHubIdGenerator_test.cpp",
+    ],
     cflags: [
-        "-DLOG_TAG=\"BufferNode_test\"",
+        "-DLOG_TAG=\"BufferHubServer_test\"",
         "-DTRACE=0",
         "-DATRACE_TAG=ATRACE_TAG_GRAPHICS",
     ],
@@ -18,19 +21,3 @@
         "libgmock",
     ],
 }
-
-cc_test {
-    name: "BufferHubIdGenerator_test",
-    srcs: ["BufferHubIdGenerator_test.cpp"],
-    cflags: [
-        "-DLOG_TAG=\"BufferHubIdGenerator_test\"",
-        "-DTRACE=0",
-        "-DATRACE_TAG=ATRACE_TAG_GRAPHICS",
-    ],
-    shared_libs: [
-        "libbufferhubservice",
-    ],
-    static_libs: [
-        "libgmock",
-    ],
-}
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