Remove OPENSSL_VERSION_NUMBER version check for the CAPath option in libcurl (#5009)

* Remove OPENSSL_VERSION_NUMBER version check for the CAPath option in
libcurl.

* Revert unit test change that caused an intentional error.

* Remove the openssl header.

Author: ahsonkhan

sdk/core/azure-core/inc/azure/core/http/curl_transport.hpp

@@ -14,13 +14,6 @@
 #include "azure/core/http/transport.hpp"
 #include "azure/core/platform.hpp"
 
-#if defined(AZ_PLATFORM_LINUX)
-#include <openssl/opensslv.h>
-#if OPENSSL_VERSION_NUMBER >= 0x00905100L
-#define _azure_SUPPORT_SETTING_CAPATH
-#endif // OPENSSL_VERSION_NUMBER >= 0x00905100L
-#endif // defined(AZ_PLATFORM_LINUX)
-
 namespace Azure { namespace Core { namespace Http {
   class CurlNetworkConnection;
 
@@ -130,7 +123,7 @@ namespace Azure { namespace Core { namespace Http {
      */
     std::string CAInfo;
 
-#if defined(_azure_SUPPORT_SETTING_CAPATH)
+#if defined(AZ_PLATFORM_LINUX)
     /**
      * @brief Path to a directory which holds PEM encoded file, containing the certificate
      * authorities sent to libcurl handle directly.

sdk/core/azure-core/src/http/curl/curl.cpp

@@ -1283,7 +1283,7 @@ inline std::string GetConnectionKey(std::string const& host, CurlTransportOption
   key.append(",");
   key.append(!options.CAInfo.empty() ? options.CAInfo : "0");
   key.append(",");
-#if defined(_azure_SUPPORT_SETTING_CAPATH)
+#if defined(AZ_PLATFORM_LINUX)
   key.append(!options.CAPath.empty() ? options.CAPath : "0");
 #else
   key.append("0"); // CAPath is always empty on Windows;
@@ -2320,7 +2320,7 @@ CurlConnection::CurlConnection(
     }
   }
 
-#if defined(_azure_SUPPORT_SETTING_CAPATH)
+#if defined(AZ_PLATFORM_LINUX)
   if (!options.CAPath.empty())
   {
     if (!SetLibcurlOption(m_handle, CURLOPT_CAPATH, options.CAPath.c_str(), &result))

sdk/core/azure-core/test/ut/curl_options_test.cpp

@@ -235,7 +235,7 @@ namespace Azure { namespace Core { namespace Test {
                         .ConnectionPoolIndex.clear());
   }
 
-#if defined(_azure_SUPPORT_SETTING_CAPATH)
+#if defined(AZ_PLATFORM_LINUX)
   TEST(CurlTransportOptions, setCADirectory)
   {
     Azure::Core::Http::CurlTransportOptions curlOptions;