Use python / python2.7 prebuilts

Bug: 117811537
Test: treehugger
Change-Id: I35b335edcfa202a45f55f588a643c62c2ced0f26
diff --git a/ui/build/paths/config.go b/ui/build/paths/config.go
index d4922f3..fb30f85 100644
--- a/ui/build/paths/config.go
+++ b/ui/build/paths/config.go
@@ -74,41 +74,39 @@
 }
 
 var Configuration = map[string]PathConfig{
-	"bash":      Allowed,
-	"bc":        Allowed,
-	"bzip2":     Allowed,
-	"date":      Allowed,
-	"dd":        Allowed,
-	"diff":      Allowed,
-	"egrep":     Allowed,
-	"find":      Allowed,
-	"fuser":     Allowed,
-	"getopt":    Allowed,
-	"git":       Allowed,
-	"grep":      Allowed,
-	"gzip":      Allowed,
-	"hexdump":   Allowed,
-	"jar":       Allowed,
-	"java":      Allowed,
-	"javap":     Allowed,
-	"lsof":      Allowed,
-	"m4":        Allowed,
-	"openssl":   Allowed,
-	"patch":     Allowed,
-	"pstree":    Allowed,
-	"python":    Allowed,
-	"python2.7": Allowed,
-	"python3":   Allowed,
-	"realpath":  Allowed,
-	"rsync":     Allowed,
-	"sh":        Allowed,
-	"tar":       Allowed,
-	"timeout":   Allowed,
-	"tr":        Allowed,
-	"unzip":     Allowed,
-	"xz":        Allowed,
-	"zip":       Allowed,
-	"zipinfo":   Allowed,
+	"bash":     Allowed,
+	"bc":       Allowed,
+	"bzip2":    Allowed,
+	"date":     Allowed,
+	"dd":       Allowed,
+	"diff":     Allowed,
+	"egrep":    Allowed,
+	"find":     Allowed,
+	"fuser":    Allowed,
+	"getopt":   Allowed,
+	"git":      Allowed,
+	"grep":     Allowed,
+	"gzip":     Allowed,
+	"hexdump":  Allowed,
+	"jar":      Allowed,
+	"java":     Allowed,
+	"javap":    Allowed,
+	"lsof":     Allowed,
+	"m4":       Allowed,
+	"openssl":  Allowed,
+	"patch":    Allowed,
+	"pstree":   Allowed,
+	"python3":  Allowed,
+	"realpath": Allowed,
+	"rsync":    Allowed,
+	"sh":       Allowed,
+	"tar":      Allowed,
+	"timeout":  Allowed,
+	"tr":       Allowed,
+	"unzip":    Allowed,
+	"xz":       Allowed,
+	"zip":      Allowed,
+	"zipinfo":  Allowed,
 
 	// Host toolchain is removed. In-tree toolchain should be used instead.
 	// GCC also can't find cc1 with this implementation.