common/cpu_detect: Remove Common::CPUVendor

It's only used by telemetry, where the information it provides can be gained from the brand string.

src/common/x64/cpu_detect.cpp

@@ -66,12 +66,6 @@ static CPUCaps Detect() {
     __cpuid(cpu_id, 0x80000000);
 
     u32 max_ex_fn = cpu_id[0];
-    if (!strcmp(caps.brand_string, "GenuineIntel"))
-        caps.vendor = CPUVendor::INTEL;
-    else if (!strcmp(caps.brand_string, "AuthenticAMD"))
-        caps.vendor = CPUVendor::AMD;
-    else
-        caps.vendor = CPUVendor::OTHER;
 
     // Set reasonable default brand string even if brand string not available
     strcpy(caps.cpu_string, caps.brand_string);

src/common/x64/cpu_detect.h

@@ -6,16 +6,8 @@
 
 namespace Common {
 
-/// x86/x64 CPU vendors that may be detected by this module
-enum class CPUVendor {
-    INTEL,
-    AMD,
-    OTHER,
-};
-
 /// x86/x64 CPU capabilities that may be detected by this module
 struct CPUCaps {
-    CPUVendor vendor;
     char cpu_string[0x21];
     char brand_string[0x41];
     bool sse;