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")