crash_reporter: Fix unit tests

- Removed obsolete unit tests.
- Fix remaining unit tests for Android.

Change-Id: I1665447d375178d2bcf941fec3585c8f96cd2bac
diff --git a/crash_reporter/crash_collector.cc b/crash_reporter/crash_collector.cc
index 2a9d1d3..b3fdcb4 100644
--- a/crash_reporter/crash_collector.cc
+++ b/crash_reporter/crash_collector.cc
@@ -47,7 +47,6 @@
 const char kDefaultLogConfig[] = "/etc/crash_reporter_logs.conf";
 const char kDefaultUserName[] = "chronos";
 const char kLeaveCoreFile[] = "/data/misc/crash_reporter/.leave_core";
-const char kLsbRelease[] = "/etc/lsb-release";
 const char kShellPath[] = "/system/bin/sh";
 const char kSystemCrashPath[] = "/data/misc/crash_reporter/crash";
 const char kUploadVarPrefix[] = "upload_var_";
@@ -90,8 +89,7 @@
 using base::StringPrintf;
 
 CrashCollector::CrashCollector()
-    : lsb_release_(kLsbRelease),
-      log_config_path_(kDefaultLogConfig) {
+    : log_config_path_(kDefaultLogConfig) {
 }
 
 CrashCollector::~CrashCollector() {