[Test] Simplify index store test

The number of dependencies isn't super important for this test - it is
just checking paths are correctly remapped. Remove the check for the
number of dependencies.

Author: bnbarham

test/Index/Store/unit-pcm-dependency-remapped.swift

@@ -77,7 +77,7 @@ func test() {
 // FILE1-NOT: Unit |{{.*}}ClangModuleA
 // FILE1: Record | user | {{.*}}unit-pcm-dependency-remapped.swift | unit-pcm-dependency-remapped.swift-
 // FILE1-NOT: Unit |{{.*}}ClangModuleA
-// FILE1: DEPEND END (4)
+// FILE1: DEPEND END
 
 // FILE2-NOT: main.swiftmodule-