Revert "Use a partition packaging spec filter for android_filesystem"

This reverts commit 8a49643e6b727490898ea94b41667eecf24685f2.

Reason for revert: <DroidMonitor created revert due to b/374395492.Will be verified through ABTD for standard investigation>

Change-Id: I4494f15f1681bf2456439151771e84c7d1f221b7
diff --git a/filesystem/filesystem.go b/filesystem/filesystem.go
index 9756b82..4bdd0a4 100644
--- a/filesystem/filesystem.go
+++ b/filesystem/filesystem.go
@@ -264,7 +264,7 @@
 func (f *filesystem) filterInstallablePackagingSpec(ps android.PackagingSpec) bool {
 	// Filesystem module respects the installation semantic. A PackagingSpec from a module with
 	// IsSkipInstall() is skipped.
-	return !ps.SkipInstall() && (ps.Partition() == f.PartitionType())
+	return !ps.SkipInstall()
 }
 
 var pctx = android.NewPackageContext("android/soong/filesystem")
diff --git a/filesystem/filesystem_test.go b/filesystem/filesystem_test.go
index 1e50836..057dcaa 100644
--- a/filesystem/filesystem_test.go
+++ b/filesystem/filesystem_test.go
@@ -584,28 +584,3 @@
 	android.AssertStringDoesContain(t, "erofs fs type compress hint", buildImageConfig, "erofs_default_compress_hints=compress_hints.txt")
 	android.AssertStringDoesContain(t, "erofs fs type sparse", buildImageConfig, "erofs_sparse_flag=-s")
 }
-
-// If a system_ext/ module depends on system/ module, the dependency should *not*
-// be installed in system_ext/
-func TestDoNotPackageCrossPartitionDependencies(t *testing.T) {
-	result := fixture.RunTestWithBp(t, `
-		android_filesystem {
-			name: "myfilesystem",
-			deps: ["binfoo"],
-			partition_type: "system_ext",
-		}
-
-		cc_binary {
-			name: "binfoo",
-			shared_libs: ["libfoo"],
-			system_ext_specific: true,
-		}
-		cc_library_shared {
-			name: "libfoo", // installed in system/
-		}
-	`)
-
-	partition := result.ModuleForTests("myfilesystem", "android_common")
-	fileList := android.ContentFromFileRuleForTests(t, result.TestContext, partition.Output("fileList"))
-	android.AssertDeepEquals(t, "filesystem with dependencies on different partition", "bin/binfoo\n", fileList)
-}
diff --git a/filesystem/system_image.go b/filesystem/system_image.go
index 7dbf986..57239ae 100644
--- a/filesystem/system_image.go
+++ b/filesystem/system_image.go
@@ -103,6 +103,6 @@
 // partition.  Note that "apex" module installs its contents to "apex"(fake partition) as well
 // for symbol lookup by imitating "activated" paths.
 func (s *systemImage) filterPackagingSpec(ps android.PackagingSpec) bool {
-	return !ps.SkipInstall() &&
+	return s.filesystem.filterInstallablePackagingSpec(ps) &&
 		(ps.Partition() == "system" || ps.Partition() == "root")
 }