Remove libjemalloc5 from default musl libraries

The musl allocator works now, remove libjemalloc5 from the default
libraries.

Bug: 190084016
Test: prebuilts/build-tools/build-prebuilts.sh --musl
Change-Id: I12ef8112af99f90e10e8a247ddc2eddfd4cd98a0
diff --git a/cc/config/x86_linux_host.go b/cc/config/x86_linux_host.go
index 1d66cb7..e7fcfed 100644
--- a/cc/config/x86_linux_host.go
+++ b/cc/config/x86_linux_host.go
@@ -110,7 +110,7 @@
 	muslCrtBeginSharedBinary, muslCrtEndSharedBinary   = []string{"libc_musl_crtbegin_dynamic", "musl_linker_script"}, []string{"libc_musl_crtend"}
 	muslCrtBeginSharedLibrary, muslCrtEndSharedLibrary = []string{"libc_musl_crtbegin_so"}, []string{"libc_musl_crtend_so"}
 
-	muslDefaultSharedLibraries = []string{"libjemalloc5", "libc_musl"}
+	muslDefaultSharedLibraries = []string{"libc_musl"}
 )
 
 const (
diff --git a/cc/testing.go b/cc/testing.go
index e8f3481..071f1ec 100644
--- a/cc/testing.go
+++ b/cc/testing.go
@@ -451,16 +451,6 @@
 			name: "note_memtag_heap_sync",
 		}
 
-
-		cc_library {
-			name: "libjemalloc5",
-			host_supported: true,
-			no_libcrt: true,
-			nocrt: true,
-			system_shared_libs: [],
-			stl: "none",
-		}
-
 		cc_library {
 			name: "libc_musl",
 			host_supported: true,