builtins: remove an errant ':'

Thanks to Dave Lee for pointing this out!

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@293120 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/builtins/arm/comparesf2.S b/lib/builtins/arm/comparesf2.S
index e5836e6..ef7091b 100644
--- a/lib/builtins/arm/comparesf2.S
+++ b/lib/builtins/arm/comparesf2.S
@@ -283,7 +283,7 @@
 END_COMPILERRT_FUNCTION(__unordsf2)
 
 #if defined(COMPILER_RT_ARMHF_TARGET)
-DEFINE_COMPILERRT_FUNCTION(__aeabi_fcmpum):
+DEFINE_COMPILERRT_FUNCTION(__aeabi_fcmpum)
 	vmov s0, r0
 	vmov s1, r1
 	b SYMBOL_NAME(__unordsf2)