Remove __attribute__((objc_precise_lifetime)) from tests

Author: phatblat

ObjectiveGitTests/GTOIDSpec.m

@@ -48,7 +48,7 @@
 	const git_oid *git_oid = NULL;
 
 	{
-		GTOID *testOID __attribute__((objc_precise_lifetime)) = [[GTOID alloc] initWithSHA:testSHA];
+		GTOID *testOID = [[GTOID alloc] initWithSHA:testSHA];
 		git_oid = testOID.git_oid;
 	}
 

ObjectiveGitTests/GTSignatureSpec.m

@@ -49,7 +49,7 @@
 	const git_signature *git_signature = NULL;
 
 	{
-		GTSignature *testSignature __attribute__((objc_precise_lifetime)) = [[GTSignature alloc] initWithName:name email:email time:time];
+		GTSignature *testSignature = [[GTSignature alloc] initWithName:name email:email time:time];
 		git_signature = testSignature.git_signature;
 	}