Disallow using stlport.

See https://android-review.googlesource.com/149486

Change-Id: I577a16c8c52e2c7d939c3b5026e18ad90e4b9f26
diff --git a/cc/cc.go b/cc/cc.go
index f918087..99d4622 100644
--- a/cc/cc.go
+++ b/cc/cc.go
@@ -791,7 +791,6 @@
 
 	switch c.Properties.Stl {
 	case "libc++", "libc++_static",
-		"stlport", "stlport_static",
 		"libstdc++":
 		return c.Properties.Stl
 	case "none":
@@ -844,13 +843,6 @@
 				flags.LdFlags = append(flags.LdFlags, "-Wl,--exclude-libs,libunwind_llvm.a")
 			}
 		}
-	case "stlport", "stlport_static":
-		if ctx.Device() {
-			flags.CFlags = append(flags.CFlags,
-				"-I${SrcDir}/external/stlport/stlport",
-				"-I${SrcDir}/bionic/libstdc++/include",
-				"-I${SrcDir}/bionic")
-		}
 	case "libstdc++":
 		// Using bionic's basic libstdc++. Not actually an STL. Only around until the
 		// tree is in good enough shape to not need it.
@@ -913,10 +905,6 @@
 				depNames.SharedLibs = append(depNames.SharedLibs, "libdl")
 			}
 		}
-	case "stlport":
-		depNames.SharedLibs = append(depNames.SharedLibs, "libstdc++", "libstlport")
-	case "stlport_static":
-		depNames.StaticLibs = append(depNames.StaticLibs, "libstdc++", "libstlport_static")
 	case "":
 		// None or error.
 	case "ndk_system":